How do you know if a given relation is a function or not a function?

Answers

Answer 1

Answer:

In general, a relationship f (x) = y is a function only if, for each value of x that you plug into it, you get only one value for y.

Step-by-step explanation:

Sometimes the only way to tell if a given relationship is a function or not is to try various values for x to see if they yield unique values for y.


Related Questions

Nets that will form into a cube

Answers

There are exactly eleven nets that will form a cube.

is 6.1 an rational number?



Answers

Yes it is because it ends

Two fair sided dice are rolled and the face values are added. What is the probability of obtaining an odd number greater then 8

Answers

Answer:

4/12 chance that it will land on a higher number than 8

Step-by-step explanation:

F(t) = t-1
g(t)= t^3 + 4t
Find (f -g)(t)

Answers

Answer:

Step-by-step explanation:

t - 1 - t^3 - 4t

-t^3 - 3t

help!! Find the equation of the line shown ​

Answers

Answer:

[tex]\boxed{\bold{\huge{\boxed{y = 2x}}}}[/tex]

Step-by-step explanation:

Slope(m):

To find the slope , we need to take any two coordinates from the line.

The coordinates are (0,0) and (5,10)

Slope = [tex]\sf \frac{rise}{run}[/tex]

Slope = [tex]\sf \frac{y2-y2}{x2-x1}[/tex]

Slope = [tex]\frac{10-0}{5-0}[/tex]

Slope = [tex]\frac{10}{5}[/tex]

Slope = 2

Y-intercept(b):

Y-intercept is the point where x = 0 and that point is the origin.

So, y-intercept = 0

Slope-intercept equation:

[tex]\sf y = mx+b[/tex]

Where m = 2 and b = 0

[tex]\sf y = 2x+0[/tex]

[tex]\sf y = 2x[/tex]

Charlie invested $12,000 into an
account that pays 5% simple
interest. Charlie will not make any
additional deposits or
withdrawals. How much interest
will Charlie earn on his investment
at the end of 3 years?

Answers

Answer:

$1800

Step-by-step explanation:

12000(1+0.05x 3)

= 13800

13800 - 12000

$1800

Answer:

1800

Step-by-step explanation:

How much higher is -200 than 400 m?

Answers

Answer:

600m

Step-by-step explanation:

-200 + 200 = 0, 0 to 400 need 400, 400 + 200 = 600 i guess lol

Answer:

The answer is not greater because it is a negative. If you mean less than it is exactly 400 less than 400 m.

Martin measure the links of five shoes in his closet there links were 10.252 inches, 9.894 inches, 10.455 inches, 9.5 to 7", and 10.172 inches which to estimation technique will gives the same result for the total number of inches for all five shoes

Answers

Answer:

the answer is B

Step-by-step explanation:

ik because i got it right.

Answer:

b ;)

Step-by-step explanation:

edge 2021 my good fellow

Pete gets a delivery of movies at his store The table shows the number of each type of movie. Pete selects a
movie at random. What is the probability that he chooses a comedy?
Action
12
Romance
3
Comedy
6
Drama
9

Answers

20% because you add up the total and find the percent of 6 from 30 if it is random

Find the distance between: (0, -5) and (2,-5) Round your answer to the nearest hundredths.

Answers

Answer:

             2.00

Step-by-step explanation:

[tex]d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}\\\\d=\sqrt{(2-0)^2+(-5+5)^2}=\sqrt{2^2+0^2}=\sqrt{4}=2[/tex]

The total distance from earth to the sun would be written as 1.0346 x 1022 7 points
miles from earth. What would this be in standard notation? *

Answers

Answer:

1.0346 x [tex]10^{22}[/tex]

Since the exponent of the scientific notation is positive, move the decimal point  22  places to the right.

10,346,000,000,000,000,000,000

The standard notation will be 10346000000000000000000.

It is given that total distance from earth to sun is 1.0346 × [tex]10^{22}[/tex]miles.

What will be the standard notation for this ?

What do you mean by the standard notation of a number ?

Standard notation of a number is when a number is written with only number digits i.e., the standard notation for 2 × [tex]10^{2}[/tex] will be 200.

The total distance from earth to the sun would be written as ;

1.0346 x [tex]10^{22}[/tex] miles.

We need to put the decimal point 22 places right ;

So , It can be written as ;

10346000000000000000000

Thus , standard notation will be 10346000000000000000000.

To learn more about decimal's click here ;

https://brainly.com/question/21400177

#SPJ2

Use the information to answer the question.
The picture shows the deck of a house.
2 m
3 m
3 m
3 m
What is the total area of the deck? Enter the answer in the box.
square meters

Answers

Answer:

the answer is 54

Step-by-step explanation:

The total area of the deck shown in the diagram attached is 21 m²

What is an equation?

An equation is an expression that shows the relationship between two or more numbers and variables.

The total area of the deck = (2 m * 3 m) + (2 + 3) m * 3 m = 21 m²

The total area of the deck shown in the diagram attached is 21 m²

Find out more on equation at: https://brainly.com/question/2972832

#SPJ2

Solve the system of equations [tex]\left \{ {{y=15x + 9} \atop {y=12x - 20}} \right.[/tex]

Answers

Go with B I did the problem

Answer:

what is the answer?

Step-by-step explanation:

the sum of three consecutive multiples of 2 is 18 .

Answers

Answer:

consecutive multiple of 2 is 2,4,6

this sum is 2+4+6 is 12

Distributive property
Evaluate.
7 x 6 = 5 sixes +
sixes
+ 12
=

Answers

Answer:

5 sixes + 2 sixes

30 + 12

42

Step-by-step explanation:

7 x 6 is 7 sixes

7 sixes = 5 sixes + 2 sixes (7=5+2)

5 sixes =30 + 2 sixes = 12

30 + 12 = 42

Someone help please!

Answers

Answer:

x = 6

Step-by-step explanation:

The sum of the angles of a triangle is 180

70+60+8x+2 = 180

Combine like terms

132 +8x = 180

Subtract 132 from each side

132+8x-132= 180-132

8x = 48

Divide each side by 8

8x/8 = 48/8

x = 6

M is the midpoint of segment AB and M (-4,-5) and A (-2,-9) find the endpoint B.
(-6, -1) b) (4,-1) c) (-2,4) d) (4,2)

The midpoint of a line segment divides a line segment into two equal parts. (T/F).

Answers

Answer:

(-6, -1)

Yes, the midpoint of a line segment divides the segment into two equal parts.  True.

Step-by-step explanation:

Going from A(-2, -9) to M(-4, -5), x decreases by two units from -2 to -4; if we now go from M(-4, -5) to B, we expect that x will decrease by two more units, from -4 to -6.  Thus, the x-coordinate of B is -6.

y increases by 4 from -9 to -5 (4 units) under the same circumstances.  To find the y-coordinate of B, we add 4 to -5, obtaining y = -1.

The endpoint B is thus (-6, -1).

Brazil has an area of approximately 8.51 x 10^6 square kilometers and
a population of about 1.99 x 10^8 people. Portugal has an area of
approximately 9.21 x 10^4 square kilometers and a population of about
1.08 x 10^7 people. On average, which country has a greater number of
people per square kilometer? Explain how you know.

Answers

Answer:

Portugal

Step-by-step explanation:

BrazilArea = 8.51 × 10^6 km²Population = 1.99 × 10^8 people

Density of population:

1.99 × 10^8 / 8.51 × 10^6 =1.99 × 10^2/8.51 =199/8.51 =≈23.38 people/km²PortugalArea = 9.21 × 10^4 km²Population = 1.08 × 10^7 people

Density of population:

1.08 × 10^7 / 9.21 × 10^4 =1.08 × 10^3 / 9.21 =1080 / 9.21 =≈ 117.26 people/km²

Portugal has a greater number of people per square kilometer

Please simplify! 1+x-1+12x=12x-3

Answers

Answer:

x = - 3

Step-by-step explanation:

1 + x - 1 + 12x = 12x - 3

Subtract 12x from both sides.

1 + x - 1 = - 3

Combine like terms on the left side.

x = - 3

Answer:

1+x-1+12x=12x-3

Step-by-step explanation:

x+12x-12x=-3-1+1

x=-3

Please I need help....

Answers

Answer:

1. D

"n" represents the figure. For example, the equation for figure 3 would be [tex]\frac{3(3+1)}{2}[/tex] which is equal to 6 (the amount of blocks in the figure).

2. D

In the sample equations, the 9 represents figure 9. There are consistently 3 blocks in each row with an additional block at the top of the figures. So, the equation for figure 4 would be 1+(3x4) which is equal to 13. Therefore, the equation for figure 9 would be 1+(3x9).

3. A

P represents the perimeter and the n represents the figure number (like in question 1). The correct equation for the pattern would be P=4n+8. To check it, we can plug the numbers from figure 2. The equation would look like this: 16=4(2)+8

4. B

To find the answer to this problem, we just have to work backwards. We must "divide a number by 5" so we start out with [tex]\frac{n}{5}[/tex]. "n" represents the number that we do not know yet. Then we must "add 4 to the result" so the equation will now look like this: [tex]\frac{n}{5} + 4[/tex]. The problem also states that the answer is 9. Now, the final equation looks like this: [tex]\frac{n}{5} + 4=9[/tex].

If you need to, guess and check is a good way to complete multiple choice questions (until you're able to get help). I recommend asking your teacher for a more in depth explanation if you still don't understand.

Help I'm 5 and I'm stuck what is 5+5 = ​

Answers

Answer:

10

Step-by-step explanation:

You can do 5+5=10 or you can do 5x2=10. You can also do it this way but it is the longer way 1+1+1+1+1+1+1+1+1+1.

Answer:

its 10 sweety if you need any help just ask me

Step-by-step explanation:

5/2 x-7 =3/4 x +14 whats the solution

Answers

Answer:

x = 12.

Step-by-step explanation:

Simplify the expression 4 squared + 8 divided by 2

Answers

Answer:

20

Step-by-step explanation:

4^2+8/2

16+8/2

20

*USE PEMDAS*

Please help with question 2

Answers

I would distribute first.

[tex]-5-3x\geq 2(10+2x)+3[/tex]

[tex]-5-3x\geq 20+4x+3[/tex]

[tex]-5-3x\geq 4x+23[/tex]

[tex]7x \leq -28[/tex]

[tex]x\leq -4[/tex]

Hope this helps.

頑張って!

The first aircraft has 89 more seats than the second aircraft. The third aircraft has 31 fewer seats than the second aircraft. If their total number of seats is 418, find the number of seats for each aircraft.

Answers

Answer:

I think number 1=209

number 2=120

number 3=89

Step-by-step explanation:

x= 1st aircraft

y=2nd aircraft

z=3rd aircraft

x=y+89

y=z+31

z=y-31

x+y+z=418

y+89+z+31+y-31=418

2y+89+z=418

2y+z=329

2y+(add z)

2y+y-31=329

3y=360

y=120

x=120+89=209

z=120-31=89

2/5 as a decimal show all work

Answers

Answer:

0.4

Step-by-step explanation:

to convert from a fraction to a decimal, we first have to make the denominator 100

we know that 5 goes into 100 20 times ;

100 ÷ 5 = 20 ;

then we have to multiply the numerator by 20 as well because we have multiplied the bottom by 20 ;

[tex]\frac{2}{5}[/tex] [tex](\frac{20}{20})[/tex]

2 x 20 = 40 ;

= [tex]\frac{40}{100}[/tex]

then to convert this into a decimal, divide the numerator by the denominator

40  ÷ 100 = 0.4

Kira owes Mark $5, and Mark owes Kira $7. Which of the following statements means the same thing?

Answers

Answer:

Mark owes Kira $2.

Step-by-step explanation:

The correct answer is “Mark owes Kira $2” because first Kira owes $5 to the Mark and then Mark gives $7 to Kira. Here it can be seen that Mark is giving $2 extra and $5 is the amount which he is refunding. So the net amount $2 that the Mark gives to Kira. Therefore, the statement “Mark owes Kira $2” is justified and correct.

If LMP = (6x+5), NMP = (4x +18) and NML = 163°, find the measure of PMN. im sorry i dont understand geometry at all can someone help?

Answers

Answer:

PMN = 74°

Step-by-step explanation:

1. 6x + 5 + 4x + 18 = 163°

2. Combine like terms

3. 10x + 23 = 163°

4. Subtract 23 from both sides.

5. 10x = 140°

6. Divide 10 from both sides.

7. x = 14°

8. Now substitute the x in the equation for PMN with 14.

9. 4(14) + 18

10. Simplify

11. 56 + 18

12. Answer: 74°

The probability that daddy will buy bread on his way home is 3/5 while the probability that mummy will buy bread home is 2/7 . find the probability that either mummy or daddy will by bread on their way home​

Answers

Answer:

I didn't get d question clearly but I hope this helps

Step-by-step explanation:

3/5+ 2/7 = 31/35

31/35 - 2/7 that's a possibility for mummy buying bread the answer is 21/35

and 31/35 - 3/5 probability of daddy buying bread is 10/35

Answer:

31/35

Step-by-step explanation: when you add the two fractions together it will give you 31/35.

7. Five girls on the tennis team want to wear matching uniforms. They know skirts will costs $24
but are not sure about the price of the top. Write two different expressions that could be used
to represent the total cost of all five skirts and five tops if x represents the price of one top.
Simplify each expression.

Answers

Answer:

24x or 24 times x

Other Questions
Round 34,971.22 to the hundreds place. Which of the following statements about the fourteenth amendment is true? How did the rivalry between France and Great Britain lead to the French and Indian war? Suppose s(t) is the position of an object moving along a line at time t0. What is the average velocity between the times ta and tb? 3. Which point is coplanar with E, F, and H in the diagram below? HELP!!!!! will mark brainliest Is a cross section 2 dimensional figure or three-dimensional figure? Find the sum 32 +33 +34 + 35 + ... + 112 + 113. Reflect: When the Europeans came to the "New World" and came across with the Native Americans and their land, Do you consider that historical moment a "Discovery of new world"? Why? if i have 2 dogs and 3 cats how many animals do i have The variable n represents the number of bikes in a shipping container. The weight of the container in pounds, including the bikes, can be modeled using the expression 250+23(n1). How much will the container weigh with 20 bikes in it? Olivia is rolling down a hill on a skateboard and is accelerating at 2.4 m/s2. After 3 seconds, she runs into Reid at the bottom of the hill. If her initial velocity was 1.5 m/s, what was her velocity when she hit Reid? what is 33 can anyone help me Evaluate the expression:(5/7) = ? Assume that for John Paxton, a soybean producer from Iowa, the only source of farm income is from the production of soybeans. Paxton produced 100,000 bushels of soybeans in 2014, receiving $8 per bushel. Assuming this producer had pro- duction expenses of $300,000, and assuming the CPI for 2014 was 2.00, his real farm income for 2014 was:_______ a. $250,000.b. $500,000. c. $800,000. d. can't tell; insufficient information The Lydians experienced hunger because.. 1, 5, 14, 30, 55, __,__ How could Jamestown be affected by becoming a "royal colony"? The difference between a number 12 is 20 can somebody please give me an essay outline/rubric/sentence starters/paragraph put together helpers for comparing two authors arguments, with evidence and explanations