Which of the following relations is a function?
O A
{(-1, - 4), (-1,0), (- 1,5), (- 1, 7), (-1,9)
B.
{(-2, - 4), (-1,7), (1, - 1), (1, 1), (3,9)}
о
C.
{(-4,9), (- 3, 1), (- 2, 3), (- 2, 12), (0, 6) }
D.
{(0, - 4), (1, - 4), (2, 4), (3, 4), (4, - 4)}
О O

Answers

Answer 1

Answer: D. {(0, - 4), (1, - 4), (2, 4), (3, 4), (4, - 4)}

Step-by-step explanation:

A relation R is said to be a function if for each input value there exists only one unique output value.

In (x,y)  , x= Input value , y= output value.

A. {(-1, - 4), (-1,0), (- 1,5), (- 1, 7), (-1,9)}

Here, -1 has two output values -4 and 0.

So it is not a function.

B. (-2, - 4), (-1,7), (1, - 1), (1, 1), (3,9)}

Here, 1 has two output values -1 and 1.

So it is not a function.

C. {(-4,9), (- 3, 1), (- 2, 3), (- 2, 12), (0, 6) }

Here, -2 has two output values 3 and 12.

So it is not a function.

D. {(0, - 4), (1, - 4), (2, 4), (3, 4), (4, - 4)}

here, each input value has an unique output value.

Hence, D. option is correct.


Related Questions

Which of the following is equivalent to 5 • (7 • 4)?

Answers

Answer:

Its (5 x 7) x 4

Step-by-step explanation:

5 x (7 x 4)

5 x (28)

140

------------

(5 x 7) x 4

(35) x 4

140

What is the value of y? Show you’re work

Answers

Answer:

Y = 32

Step-by-step explanation:

First traingle is 180 degrees

So 180 - 52 = 128

Then 2y + 2y = 4y

So now 128/4 = 32

If you wanna checl ur answer just put the number in and check if it equal to 180

Beverly used 2.4 yards of ribbon on the border of a quilt. If each side used 0.6 yard of ribbon, how many sides did she use the ribbon on? Draw models to help you divide.

Answers

Answer: She used 4 sides.

Step-by-step explanation:

2.4 ÷ 0.6 = 4

Lines l and m are parallel and a and b are parallel. Find the measure of angle 10 if measure of angle 1 is 62.

please help

Answers

well since the lines l and m are straight, their measures would be 180. So if you subtract 62 from 180 you'd get angle 2=118. since angles 2 and 10 are the same angle, 10 would also have a measure of 118

Basically ur answer is angle 10=118

A pool is surrounded by a rectangular fence with a
perimeter of 72 yards. If the length of the fence is 3
times the width, what is the length of the fence, in yards?

Answers

Answer:

width is 33

Step-by-step explanation:

width (b) =?

length(l)=3

perimeter (p)=?

now,

perimeter = 2(l+b)

or,72= 2(3+ b)

or,72/2= 3+b

or,36= 3+b

or,36-3= b

or,33= b

therefore width is 33

Please hurryyyyyyyyyyyy

Answers

Answer:

(x^2+10)^2

Step-by-step explanation:

Answer:

hey! you could always use m athway or p hotomath for this (:

The scale of a square map indicates that each inch on the map
corresponds to 5 miles. Write an expression that describes the area of
land shown on the map. If the map is 8 inches on one side, what is the
area of land shown on the map?

Answers

Answer:

Area of land: 800 miles.

Step-by-step explanation:

Since the map is a square, you can assume that all 4 sides will equal 8 inches. (Giving you a perimeter of 32, and an area of 64.) Since each inch corresponds to 5 miles, you multiply 8 by 5 which equals 40.

Please someone help me with this math problem

Answers

Answer:

I would say A, and D

Is(1, 9)a solution to the inequality y ≤ 6x + 2?

Answers

Answer:

nope

Step-by-step explanation:

Answer:

No

Step-by-step explanation:

It wouldn't be 1,9 it would 1,8 instead also if need help with those an app called desmos helps a lot

Evaluate 8y - 2k when y = 9 and k = 7

Answers


Answer:
58

Explanation:


8(9)-2(7)
72-14
=58

Hope this helps!!

A first number is four more than seven time a second. The sum of the number is 92. Find the number.​

Answers

Answer:

11

81

Step-by-step explanation:

x = 7y + 4

x + y = 92

Solve for x in the second equation

x = 92 - y

92 - y = x

Equate the 2 xs

92 - y = 7y + 4         Add y to both sides

92 = 7y+y + 4          Combine

92 = 8y +  4             Subtract 4 from both sides

88 = 8y                    Divide by 8

88/8 = y

y = 11

===========

x = 7y + 4

x = 77 +4

x = 81

Which equation represents a line that passes through (0,–8) and (–5,–23)?

A) y = 4x – 8

B) y = –8x + 3

C) y = 5x – 8

D) y = 3x – 8

Answers

The equation of line that passes through points (0,-8) and (-5,-23) is y=3x-8 which is option d.

Given that the line passes through (0,-8) and (-5,-23).

We are required to find the equation of the line that passes through (0,-8) and (-5,-23).

Equation is like a relationship between two or more variables expressed in equal to form. Equation of two variables look like ax+by=c. It may be linear equation, quadratic equation, cubic equation, and many more depending on the power of the variable.

The formula to form the equation from two points is as under:

[tex](y-y_{1}) =(y_{2} -y_{1} )/(x_{2} -x_{1} ) * (x-x_{1} )[/tex] in which [tex](x_{1} ,y_{1} ),(x_{2} ,y_{2} )[/tex] are the points.

(y+8)=(-23+8/-5-0)(x-0)

y+8=(-15/-5) x

y+8=3x

y=3x-8

Hence the equation of line that passes through points (0,-8) and (-5,-23) is y=3x-8 which is option d.

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I need help!!! I’ll mark you brainliest
This is timed!!

Answers

D. 19

put 3 inside g

4(3) = 12

put 12 inside f(x)

2(12) - 5 = 19

So the answer is 19

Answer:

f

(

g

(

x

)

)

Evaluate  

f

(

x

+

3

)

by substituting in the value of  

g

into  

f

.

f

(

x

+

3

)

=

2

(

x

+

3

)

1

Simplify each term.

Tap for more steps...

f

(

x

+

3

)

=

2

x

+

6

1

 

Subtract  

1

from  

6

.

f

(

x

+

3

)

=

2

x

+

5

Step-by-step explanation:

Emily makes 75 pins to sell at the schools craft fair. she has two designs: a star and a bumblebee. she makes 2 pins for every 3 bumblebee pins. how many pins of each type does Emily make?​

Answers

30 star pins

45 bumblebee pins

hope this is correct !!

Q is the midpoint of PR.
PQ = 4x - 7 and QR = 3x + 1.
Find the length of PR. W

Answers

86x 997. W length or

Your friend thinks that the equation k-3.5=21, is he correct? explain.

Answers

Answer:

This could be correct in the case and only if k would equal 24.5 so only in that case

Step-by-step explanation:

3z squared minus 6z if z = 5

Answers

Answer:

45

Step-by-step explanation:

Given

3z² - 6z ← substitute z = 5 into the expression

= 3(5)² - 6(5)

= 3(25) - 30

= 75 - 30

= 45

Answer:

Step-by-step explanation:

First, convert the z’s to numbers.

3(5) squared - 6(5)

do the squared first

3(25)-6(5)

multiply

75-30=45

Answer:45

Which is the least common multiple of 8 and 16?​

Answers

Answer:

The awnser is 2

Step-by-step explanation:

Your answer would be 2


Can y’all help me on 23?!

Answers

So if the ratio of red to blue is 8:3 and there are 15 blue cars then there are 40 red cars.
If the ratio of red to white is 2:10 then then there are 200 white cars.

Explanation:
15 divided by 3 is 5. So you multiply 8 by 5 to get 40. 40:15 reduces to 8:3.

With 40 red cars the ratio of 2:10 would be made into 40:200.

The fractions/ratios have to remain proportional.

Given a circle with endpoints of a diameter at-10 -1i and 6 + 11i, answer the questions below.
1. The center of the circle is at -2 +5i
2. The radius of the circle has a length of ___ units. ​

Answers

Answer: 10

Step-by-step answer:

Answer:

10

Step-by-step explanation:

I don't actually know how to find it, but that was the right answer on edge

can someone answer it plsssssss

Answers

Answer:

3

Step-by-step explanation:

what answer is equal to -3(x-6)?

Answers

C is the correct answer

What value(s) of z makes the equation 7/6 Z + 1/3 = -5 / 6 true; Z = -1, Z= 2, Z= 1, or Z= -36 / 63?

Answers

Answer:

Z = -1

Step-by-step explanation:

to find which value of Z makes the equation true substitute each value of Z into the equation.

Z = -1

7/6(-1) + 1/3 = -5/6

-5/6=-5/6

all other values of Z will not give u an equal statement

simplify 3x × x
thanks​

Answers

Answer:

3x^2

Step-by-step explanation:

A spinner is split in to six equal sections with the sections colored as labeled in the drawing
Emily rolls a number cube labeled 1-6 and spins the spinner

What is the probability of Emily rolling a 5 and spinning a yellow?​

Answers

Answer: 1/18

Step-by-step explanation:

Answer:

the answer is 1/36

Step-by-step explanation:

because 1/6 times 1/6 is equal to 1/36

Work out − 5 × ( − 8 )

Answers

negatives cancel out each other so 5x8 which is 40
answer: 40x
explanation: cross out the negatives then multiple 5x x8 which will be 40x

Lazare is dividing 52.8 ounces of cereal equally into 9 bags. Which is the best way to estimate the amount of cereal in each bag?

Answers

If I'm not mistaken it's 5.9

Estimate amount of cereal in one bag is 5.867 ounces.

What are mathematical operations?

Calculate the answer using a math operator is referred to as a mathematical operation.

Basic mathematical operations are addition, multiplication, subtraction and division.

Total quantity of cereal that Lazare has = 52.8 ounces.

And number of bags into which cereal equally divides = 9

To find the amount of cereal in each bag,

Use mathematical operations,

Since, total bags are 9 and amount of cereal is 52.8 ounces.

So, in one bag amount of cereal = 52.8 / 9 = 5.8666 = 5.867

In one bag there will be 5.867 ounces of cereal.

To learn more about Mathematical operations on :

https://brainly.com/question/22469627

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Haley has $84, which is 7 times as much money as Kevin has. How much money does Kevin have? Select the correct solution method, using x to represent Kevin's money.​

Answers

x*7=84
84/7=x
12=x
Kevin has 12$

CAN SOMEONE HELP IM OT GOOD AND MATH ITS VERY EASY IM JUST NOT SMART YKKKK

Answers

Answer: -3

Step-by-step explanation: the number before x is the slope

what is -8(×+2)+2(×-1)=​

Answers

Answer:

-8x-16+2x-2

-4x = 18

x= -4.5 or -4 1/2

Step-by-step explanation:

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