A highway patrol officer is seated on a motorcycle on a curvy section of Highway 1. The posted speed limit is 45 miles per hour on this stretch of highway. The officer is monitoring traffic using radar. The next exit is 3.6 miles up the road. The radar picks up a speeding car averaging 68 mph. When the officer tries to start his motorcycle to follow the car, it won’t start. He tries again and again, and soon he fears that he won’t be able to catch the speeding car before it turns off the highway. Finally, his motorcycle starts and he begins the pursuit 30 seconds after the speeding car has passed him on the roadside.
How fast does the officer need to go to catch up to the speeding car? What is his average speed in pursuit?

Answers

Answer 1

Answer:

  80.7 mph

Step-by-step explanation:

In order to catch the car at the exit, the officer must cover the distance in 30 seconds less time than the car does. The time, speed, distance relation can be used.

Time for car to reach the exit

The relation between time, speed, and distance is ...

  time = distance/speed

Here, speed is in miles per hour, and distance is in miles. That means time will be given in hours by the straightforward application of this formula.

  time = (3.6 mi)/(68 mi/h) = (3.6/68) h = 9/170 h

Time for the motorcycle to reach the exit

There are 3600 seconds in 1 hour, so 30 seconds represents this fraction of 1 hour:

  30/3600 = 1/120

The motorcycle will have this amount of time less than the time the car takes to reach the exit, so ...

  (9/170 -1/120) h = (9(120)-170)/(170×120) h = 910/20400 h = 91/2040 h

Motorcycle speed

The speed required to cover 3.6 miles in 91/2040 hours is ...

  speed = distance/time

  (3.6 mi)/(91/2040 h) = 3.6×2040/91 mph = 7344/91 mph ≈ 80.7 mph

The officer's average speed in pursuit must be 80.7 miles per hour (or faster).

__

Additional comment

There are other ways the problem can be worked. One of them is to consider the remaining distance the car must travel when the officer begins pursuit. That will be 3.6 mi less (1/120 h)(68 mi/h) = 17/30 miles. The ratio of the officer's speed to the car's speed will be the same as the ratio of the officer's miles to the car's miles: 3.6/(3.6 -17/30) × 68 mph ≈ 80.7 mph.

Intermediate values used in the calculations should be kept at full calculator precision. Rounding should only be done at the end. Here, the actual speed required is 80.7032967... mph, rounded down for the above result.


Related Questions

During a radio contest, $50 is added to the prize money each time a caller answers the contest question incorrectly. the first caller has a chance to win $100. which equation represents the amount the 10th caller receives if this caller is the first to answer the question correctly?

Answers

Answer:

50x+100=y
y=550

Step-by-step explanation:

Since the first caller can win $100, you add 100 onto the end. After you add 50 for every person who answered incorrectly. X being amount tried/answered incorrectly, and Y being the amount you can win at that given time

Answer:

A. a10=100+(10-1)50

Step-by-step explanation:

Pamela is 7 years younger than Jiri. The sum of their ages is 39. What is Jiri ‘s age?

Answers

Based on the task given, Pamela's age and juri's age is 16 and 23 years respectively.

Equation

Juri's age = xPamela's age = x - 7Their total age = 39

x + (x - 7) = 39

x + x - 7 = 39

2x = 39 + 7

2x = 46

x = 46/2

x = 23

Therefore,

Juri's age = x

= 23 years

Pamela's age = x - 7

23 - 7

= 16 years

Learn more about equation:

https://brainly.com/question/2972832

#SPJ1

Complete the equation: x2−4x+−−=(−−)2

Answers

The complete equation is x^2 - 4x + (-2) = (-2)^2

How to complete the equation?

The equation is given as:

x^2 - 4x + __ = (__)^2

_____________________________

Take the coefficient of x

k = -4

Divide by 2

k/2 = -4/2

k/2 = -2

Square both sides

(k/2)^2 = (-2)^2

_____________________________

Add the result of the above computation to both sides of x^2 - 4x + __ = (__)^2

So, we have:

x^2 - 4x + (-2) = (-2)^2

Hence, the complete equation is x^2 - 4x + (-2) = (-2)^2

Read more about completing the square at:

https://brainly.com/question/16483306

#SPJ1

Which of the following shows that the two composite figures cover the same area?

Answers

The area of a 2D form is the amount of space within its perimeter. It is measured in square units. The correct option is 9 units².

What is an area?

The area of a 2D form is the amount of space within its perimeter. It is measured in square units such as cm², m², and so on. To find the area of a square formula or another quadrilateral, multiply its length by its width.

The area of the different figures will be shown below.

Thus, the expression that shows that the two composite figures cover the same area is A = 4 + 3 + 2 = 9 units².

Hence, the correct option is 9 units².

Learn more about the Area:

https://brainly.com/question/1631786

#SPJ1

giving brainliest to first person who answers correctly

Answers

Using it's concept, the domain and the range of the function are given as follows:

Domain: [tex]x \leq 4[/tex].Range: [tex]y \geq 0[/tex]

What are the domain and the range of a function?

The domain of a function is the set that contains all the values of the input.The range of a function is the set that contains all the values of the output.

The function for this problem is:

[tex]y = \sqrt{4 - x}[/tex]

The square root is defined only for non-negative numbers, hence the domain is given as follows:

[tex]4 - x \geq 0 \rightarrow x \leq 4[/tex]

The outputs of the square root function are also non-negative numbers, hence the range is given as follows:

[tex]y \geq 0[/tex].

More can be learned about the domain and the range of a function at https://brainly.com/question/10891721

#SPJ1

PLEASE ANSWER PROBLEM IN THE IMAGE PLEASE GIVE EXPLANATION IF YOU DON’T WANT TO GIVE A EXPLANATION DON’T ANSWER WILL GIVE BRAINLEST THANK YOU

image below

Answers

Answer:

30

Step-by-step explanation:

We can determine the number of different sets of reports by determining how many possible options are available per subject and then multiplying them.

There are 5 total options for geography, 3 for English, 1 for sciences, and 2 for maths. Multiplying these gets us 30.

#LearnWithBrainly

Calculate total choices for individual then multiply

Geography=5English=3Science=1Math=2

Total choices

5(3)(2)(1)30

Option C

3) A diameter divides a circle into two congruent arcs. What is the measure in degrees for each arc?

A. 60°

B. 45°

C. 180°

D. 90°

Answers

Answer:

C. 180°

Step-by-step explanation:

The degree measure of the arc of a full circle is 360°

A diameter divides a circle into two parts of equal size, so the degree measure of each part is half of the degree measure of a full circle.

360°/2 = 180°

The function f(x) is graphed. It represents a translation of the square root function g(x) = . What equation represents the graph of f(x)? f(x) = f(x) = f(x) = – 1 f(x) = + 1

Answers

Using translation concepts, the equation of the graph of f(x) is given as follows:

[tex]f(x) = \sqrt{x - 1}[/tex]

What is a translation?

A translation is represented by a change in the function graph, according to operations such as multiplication or sum/subtraction in it's definition.

Function f(x) is a shift right of one unit of the square root function, hence x -> x - 1 and the equation is given by:

[tex]f(x) = \sqrt{x - 1}[/tex]

More can be learned about translation concepts at https://brainly.com/question/4521517

#SPJ1

Can someone explain step by step how to get this please?

Answers

3) Alternate interior angles theorem

4) Definition of congruent angles

Suppose that poaching reduces the population of an endangered animal by 6​% per year. Further suppose that when the population of this animal falls below 20​, its extinction is inevitable​ (owing to the lack of reproductive options without severe​ in-breeding). If the current population of the animal is 1500​, when will it face​ extinction? Comment on the validity of this exponential model.

Answers

If poaching reduces the population of an endangered animal by 6% and the criteria of population extinction is 20 with present population 1500 then it will take 3.62 years to reach to the mark of extinction.

Given Poaching reduces the population of endangered animals by 6% per year. The criteria of population extinction is 20. Present population being 1500.

Number of years taken by the population of endangered animals to reach to 20 mark can be calculated as under:

20=1500*[tex](1-0.06)^{n}[/tex]

20=1500*[tex]0.94^{n}[/tex]

20/1500=[tex]0.94^{n}[/tex]

0.133=[tex]0.94^{n}[/tex]

take log both sides

log(0.133)=log[tex]0.94^{n}[/tex]-------1

log(0.133)=nlog (0.94)

put the values log values:

log(0.133)=-0.8761

log(0.94)=-0.0268

Taking 1

-0.8761=n*(-0.0268)

n=0.8761/0.0268

n=3.269

Hence to reach level of 20 the population takes 3.2 years.

Learn more about logarithm at https://brainly.com/question/25710806

#SPJ10

Let t be the number of weeks Dr. Elder is on his diet and D(t) be a linear equation that models his weight in pounds. At the beginning of his diet, t=0, Dr. Elder weighs 265 pounds, D(0)=265. After nine weeks, t=9, he now weighs 229 pounds, D(9)=229. Find the slope

Answers

Using it's concept, it is found that the slope of the function is of -4.

What is the slope of a function?

The slope of a function is given by the change in the output of the function divided by the change in the input.

For this problem, in 9 months, his weight changed from 265 pounds to 229 pounds, hence it changed -36 pounds, which means that the slope is of:

m = -36/9 = -4.

More can be learned about the slope of a function at https://brainly.com/question/24808124

#SPJ1

Seriation can be described as a series or a growing pattern, i.e. arranged by an attribute such as height, length, or weight. Which of the following activities would be the best way to help children understand seriation?
a. Read the story of the Three Billy Goats Gruff and discuss the little, medium and great big billy goat gruff brothers.
b. Have children put the pictures in order according to their size on a worksheet.
C. This book would not be used because it isn't a math concept book.

Answers

The best way to help them understand Seriation is; A: Read the story of the Three Billy Goats Gruff and discuss the little, medium and great big billy goat gruff brothers.

How to Identify growth patterns in Seriation?

We are told that;

Seriation is a series or a growing pattern. This means arranged by an attribute such as height, length, or weight.

Now, we want to find the option that is the best way to help children understand Seriation. Looking at the options, the best option would be option A. This is because by reading the story of the three Billy Goats Gruff, we can be able to arrange them by little, medium and great big billy goat gruff brothers.

Read more about Seriation at; https://brainly.com/question/15754340

#SPJ1

Based on the diagram, which is a true statement?

- If a student plays in the band, then he/she is an honor student.
- If a student is an honor student, then he/she plays in the band.
- If a student is not an honor student, then he/she cannot play in the band.
- If a student is an honor student, then he/she may also be a band member.

Answers

Based on the diagram, the true statement is "If a student is an honor student, then he/she may also be a band member."

What does the diagram show?

It shows the intersection between two groups:

Honor studentsBand members

This intersection implies some band members are honor students and vice versa. However, not all band members are honor students and not all honor students are band members.

What can be concluded?

A correct conclusion is that an honor student may also belong to the band.

Learn more about venn diagrams in https://brainly.com/question/1605100

#SPJ1

What’s the correct answer answer asap

Answers

Answer:

I think A

Step-by-step explanation:

the answer should be A

What is the slope and the y-intercept of the line on the graph below? On a coordinate plane, a line goes through points (0, 1) and (4, 0). a slope = –4, y-intercept = 1 b slope = –4, y-intercept = 4 c slope = Negative one-fourth, y-intercept = 1 d slope = Negative one-fourth, y-intercept = 4

Answers

Answer:

the slope of the coordinates will be 0-0/4-1 then you will get the coordinates of the graph

the objective function of linear programming model should be

Answers

The objective function of a linear programming model should be to maximize or minimize the numerical value.

What is the objective function?

The objective function consists of linear functions which are subjected to constraints in the form of linear equations or in the form of inequalities.

The objective function is always stated as z = ax + by.

The numerical value may be the:

Cost of a projectProduction quantityProfit valueMaterials savings.

Thus, the objective function of a linear programming model, which is always linear, is to maximize or minimize a numerical value.

Learn more about the objective function of a linear programming at https://brainly.com/question/25828237

#SPJ1

If m < ACD = 100 , then m < ACE = ?

Answers

If m ∠ACD = 100°, then m ∠ACE = 80°, as ∠ACD and ∠ACE are supplementary angles.

Supplementary angles are the angles whose sum is equal to 180°. The angles formed when one straight line intersects the other, on the point of intersection on the same side of any line are always supplementary.

In the given question, AB and DE are two straight lines intersecting at point C. ∠ACD and ∠ACE lie on the same side of the line DE, thus they are supplementary angles.

Therefore, m ∠ACD + m ∠ACE = 180°.

But we know that m ∠ACD = 100°. So,

m ∠ACD + m ∠ACE = 180°,

or, 100° + m ∠ACE = 180°,

or, m ∠ACE = 180° - 100° = 80°.

Therefore, if m ∠ACD = 100°, then m ∠ACE = 80°, as ∠ACD and ∠ACE are supplementary angles.

For the complete question, check attachment 1.

For reference to the solution, check attachment 2.

Learn more about supplementary angles at

https://brainly.com/question/21659606

#SPJ10

t+b = 41
t = 2b+2
Solve for t and b

Answers

Answer: b=13, t=29

Step-by-step explanation:

Substituting the first equation into the second,

[tex]2b+2+b=41\\\\3b+2=41\\\\3b=39\\\\b=13\\\\\implies t=2(13)+2=29[/tex]

What are the x-intercepts and the y-intercepts of the graph of 12x−3y=36

Answers

Answer:

Step-by-step explanation:

12x −3y=36  ⇔ 3y = 12x - 36

                          y = 4x - 12

y = 0 ⇔ 4x - 12 = 0 ⇔ 4x = 12 ⇔ x = 12/4 = 3

So (0 ; - 12) and (3 ; 0)

Answer:

x-intercept=3,  y-intercept=-12

Step-by-step explanation:

at x-intercept y=0 such that:

12x-3(0)=36

12x=36

[tex]x=\frac{36}{12} =3[/tex]

additionally, at y-intercept x=0 such that

12(0)-3y=36

-3y=36

[tex]y= \frac{36}{-3}=-12[/tex]

2.1. The following is a recipe for making 18 scones: 1 cup white sugar, cup butter, 2
teaspoons vanilla essence, 1 cups flour, 2 eggs, 12 teaspoons baking powder, cup of milk
On your birthday you decide to use this recipe to make scones for the staff at your school. How
would you adjust the recipe so that you can make 60 scones?
(10)
man

Answers

The adjusted recipe for 6scones is shown as;

4.2 cup white sugar, cup butter,

7.2 teaspoons vanilla essence,

4.2 cups flour,

7.2 eggs,

37.2 teaspoons baking powder, cup of milk

Ratio and proportions

Fractions are written as a ratio of two integers. Given the recipe for 18scones as

1 cup white sugar, cup butter,

2 teaspoons vanilla essence,

1 cups flour,

2 eggs,

12 teaspoons baking powder, cup of milk

For the given 60 scone;

4.2 cup white sugar, cup butter,

7.2 teaspoons vanilla essence,

4.2 cups flour,

7.2 eggs,

37.2 teaspoons baking powder, cup of milk

This given the adjusted recipe for 60 scones

Learn more on proportion here: https://brainly.com/question/19994681

#SPJ1

Please answer all parts as I know the answers but need the work to go with them. Thus, I believe the answers are correct. Thank you!

Answers

There is no photo coming up

who knows how to sketch this kind of graph

Answers

The graph of f(x) = 0.5sin(4x)  is sketched below

Graph of trigonometric functions

From the question, we are to sketch the graph of the given trigonometric function.

The given trigonometric function is

f(x) = 0.5sin(4x)

The graph of f(x) = 0.5sin(4x)  is sketched below

Learn more on Graph of trigonometric functions here: https://brainly.com/question/4987799

#SPJ1

The length of a rectangle is five times the width. If the area of the rectangle is 45
square inches, then find the length and width.

Answers

Step-by-step explanation:

sol;

l=5w

area=l*w

or,45=5w*w

or,45=5w2

or,45\5=w2

0r[tex]\sqrt{9}[/tex]=w

or,3=w

again,

l=5w

l=5*3

l=15

Therefore, length is 15 inch and width is 3 inch.

f(x)=5x-25 What is the domain of the function?

Answers

Answer:

Domain: All Real Numbers

Step-by-step explanation:

Since this function is a linear function, it will use any x-value in order to continue with being a linear function. Therefore, if the line goes on for infinity, every x-value will be used for infinity. Therefore, the domain will be All Real Numbers since every number on the x-axis has a possibility of being used.

(y + 4)^2 – 2(y + 4) + 1

Answers

Answer:

y = -3 and y = -3

or y = -3 with a multiplicity of 2

Step-by-step explanation:

[tex](y+4)^2-2(y+4)+1[/tex]

If you want to factor this, heres what you do:

[tex](y+4)(y+4)-2(y+4)+1[/tex]

[tex]y^2+8y+16-2y-8+1[/tex]

[tex]y^2+6y+9[/tex]

Then factor:

[tex](y+3)(y+3)[/tex]

[tex](y+3)^2[/tex]

The value of y:

y + 3 = 0 and y + 3 = 0

y = -3 and y = -3

or y = -3 with a multiplicity of 2

The solution of the given function are; y = -3 and y = -3 or y = -3 with a multiplicity of 2.

What is a quadratic equation?

A quadratic equation is the second-order degree algebraic expression in a variable. the standard form of this expression is  ax² + bx + c = 0 where a. b are coefficients and x is the variable and c is a constant.

The given function is;

[tex](y + 4)^2 -2(y + 4) + 1[/tex]

To solve;

[tex](y + 4)(y + 4) -2(y + 4) + 1\\\\y^{2} + 8y + 16 - 2y -8 + 1\\\\y^{2} + 6y + 9 \\[/tex]

Then the factor are;

(y + 3)(y + 3)

The value of y:

y + 3 = 0 and y + 3 = 0

y = -3 and y = -3

or y = -3 with a multiplicity of 2

Learn more about quadratic equations;

brainly.com/question/13197897

#SPJ5

Select the correct answer from each drop-down menu.

A researcher is examining the claims made by a water softener salt manufacturer. He performs an experiment using water from a variety of sources. For each water source, he has a sample with no treatment and a sample treated with the recommended amount of the water softener salt.

He then tests each sample to measure the softness and compares the results, determining that the claims made by the manufacturer are true.

The conclusion drawn from the study is _____ because the sample is _____. In this instance, an ______study was performed.

Answers

The conclusion is valid in this experiment because the sample is homogenous and an experimental study was performed.

What is an experimental study?

It should be noted that an experimental study is one in which there is a dependent variable and there is a dependent variable. Also a control is used to establish the validity of the results.

In this case, the dependent variable is the level of softness after treatment while the independent variable is the type of water softener used.

The conclusion is valid in this instance because the sample is homogenous and an experimental study was performed.

Learn more about experiment on:

brainly.com/question/9199868

#SPJ1

The table shows three values of x and their corresponding values of f (x) for a linear function f, such that f (r) = 0 and f (0) = s, where r and s are constants. What is the value of rs?​

Answers

Using a linear function, it is found that the product rs is rs = 81.

What is a linear function?

A linear function is modeled by:

y = mx + b

In which:

m is the slope, which is the rate of change, that is, by how much y changes when x changes by 1.b is the y-intercept, which is the value of y when x = 0, and can also be interpreted as the initial value of the function.

In this problem, when x changes by 68(from -64 to 68), y changes by -16(from 12 to -4), hence the slope is given by:

m = -16/64 = -0.25.

Hence:

y = -0.25x + b.

When x = 34, y = -4, hence this is used to find b.

-4 = -0.25(34) + b

b = 4.5.

Hence the function is:

y = -0.25x + 4.5.

f(r) = 0, hence:

-0.25x + 4.5 = 0

x = 4.5/0.25

x = 18

r = 18.

f (0) = s, hence s = 4.5.

Then the value of the product is:

rs = 18 x 4.5 = 81.

More can be learned about linear functions at https://brainly.com/question/24808124

#SPJ1

Select each graph that shows a function and it’s inverse

Answers

Answer:

First option

Explanation:

The inverse of a graph is its reflection on the line y = x.

This means that it is the graph that you get by reflecting the original graph on a line with the equation y = x.

In the picture below, we can see a function (red graph), its inverse (blue graph) and the line (green) that the two graphs are reflected on.

From the picture below, we can see that the shapes of the graph of a function and its inverse is similar and correspond to the shape given as the first option in the question. Therefore, the first option is the answer.

PLEASE HELP ! Determine f of the quantity 2 plus h end quantity minus f of 2 all over h if f (x) = 5x − 6.

4

4h

5

5h

Answers

The value of the function is 5

What is function?

A function is defined as a relation between a set of inputs having one output each.

Given function:

f(x) = 5x − 6

Now f(2+h) - f(2) /h

= 5(2+h)-6 - 10+6/h

=10+ 5h -10/h

=5h/h

=5

Learn more about this concept here:

https://brainly.com/question/26102243

#SPJ1

A trader sold an article for N150 and
made a profit of 20%. What was the
cost price of the article?

Answers

Answer:

125

Step-by-step explanation:

N150=120%

? =100

150×100/120

=125

The cost price of the good is $125.

What is cost price?

Cost price is the total amount of money that it costs a manufacturer to produce a given product or provide a given service.

Given that a good has been sold for $150 which made a profit of 20% we need to find the cost price of the good,

Let the cost price be x,

So,

x × 120% = 150

x = 150 × 100 / 120

x = 125

Hence the cost price of the good is $125.

Learn more about cost price click;

https://brainly.com/question/30175345

#SPJ2

Other Questions
Towns A,B,C, and D are located as shown in the accompanying figure. Two highways link Town A to Town D. Route 1 runs from Town A to Town D via Town B, and Route 2 runs from Town A to Town D via Town C. If a salesman wishes to drive from Town A to Town D and traffic conditions are such that he could expect to average the same speed on either route, which highway should he take to arrive in the shortest time? Your task is to convince this child that they are related to a fish. The kid is in 6th grade, so make sure you explain it in terms that they can understand. Your explanation will either be a persuasive essay or a flipgrid video. In your explanation you must include:Your claim, clearly statedWhat natural selection is How individuals within a population can have specific traits that give them a competitive advantage for resources over other individuals in the species.How natural selection AND changes in an environment contributes to adaptation. How adaptation of species over time contributes to evolution. Explain how at least 3 lines of evidence (Fossil record, DNA sequences, Anatomy and Embryology) provides evidence of common ancestry.Observations of patterns seen in Fossil record, DNA sequences, Anatomy or Embryology that can help explain your argument.Multiple sources of evidence and detailed reasoning to convince the child that they are related to a fish. Complete the table for the given rule.Rule: y=\dfrac{1}{4}x+1y= 41 x+1y, equals, start fraction, 1, divided by, 4, end fraction, x, plus, 1xxx yyy444 888 121212 PLEASE HELP ASAP 19912 divided by 76000 What discovery in the 1900s supported Mendel's ideas? A company's prospectus includes:A) The company's investment options.B) The company's guaranteed return strategy.C) The company's revenue and net worth.D) The company's research John spent 30 minutes developing an estimate for a job. The job itself took 2 hours, 45 minutes tocomplete. What is the ratio of the time spent on the job estimate to the total time spent (including the timespent calculating the estimate) on this job? In libel law, __________ is a reckless disregard for the truth, such as when an editor knows that a statement is false and prints it anyway. For each of the 12 rhetorical devices in the lesson do each of the following...a. Give the category.b. Give a brief definition in your own words.c. Give your own original example that you made up. Be creative! These should be complete sentences.1. repetition2. rhythm3. alliteration4. assonance5. simile6. metaphor7. exemplum8. allusion9. antithesis10. oxymoron11. irony12. antanagoge can someone help with this? Please answer this question for me The Viking spacecraft observed several features on Mars that, at first, appeared to be artificially crafted. After further study the features were primarily naturally occurring phenomena resulting from _____ on the Martian surface. Two circles with different radii have chords AB and CD, such that AB is congruent to CD. Are the arcs intersected by these chords also congruent? Explain.Hint:It would be helpful to draw two circles and label them according to the given information, then evaluate possible arc measures.Consider the type of triangle that may be drawn by connecting the endpoints of a chord to the center of a circle. Compare the triangles made by two circles with different radii. Multiple choice. A square floor mat has a side length of 22 m.What is the area of the mat as a power?A. 222 mB. 223 m3C. 22 mD. 222 m PLSS HELP geometry it's about relations within triangles. need help solving for variables Write a script and storyboard for a video that presents the story of Macbeth in 60seconds. If the technology is available, you must work with a group to select the bestscript and storyboard and then record the video; you and your classmates will be theperformers.To fit the entire story of Macbeth into one minute, you must select only the mostimportant events and characters from the play. You must therefore show a goodunderstanding of the overall plot. You must also use careful pacing to present yourshortened version of Macbeth in a way that an audience can understand. What is the measure of n?20m5N = ?Give your answer in simplest form.Enter Why are scientists certain that the climate system is warming? The constructor for Object supports methods that are used to retrieve and define properties for any object. True False How do the graph of f(x) and f^-1(x) relate?