Quiz about Functions and Relations

Question 1

Question 1.

Accepted Answer

Yes

Answer

No

Question 2

Question 2.

Accepted Answer

No

Answer

Yes

Question 3

Is the relation a function? Why.

Accepted Answer

No, because the x-value 11 has two y-values pair with it.

Answer

Yes, because the x-value 11 has two y-values pair with it.

Answer

Yes, because each x-value has only one y-value paired with it.

Answer

No, because each x-value has only one y-value paired with it.

Question 4

What is the definition of a function?

Accepted Answer

Every input has only one output

Answer

Has inputs and outputs

Answer

Inputs have different outputs every time

Answer

x-values and

y-values

Question 5

Is this is a function or not a function?

Accepted Answer

Not a Function

Answer

Function

Question 6

Is this a function or not a function?

Accepted Answer

Function

Answer

Not a Function

Question 7

Does the table represent a function?

Accepted Answer

Yes

Answer

No

Question 8

Given the graph, find: $$f\left(2\right)$$

Accepted Answer

$$f\left(2\right)=5$$

Answer

$$f\left(2\right)=4$$

Answer

$$f\left(2\right)=3$$

Answer

$$f\left(2\right)=0$$

Answer

$$f\left(5\right)=2$$

Question 9

Question 9.

Accepted Answer

Not a Function

Answer

Function

Question 10

Which of these tables represent a function?

Accepted Answer

A

Answer

B

Answer

C

Answer

D

Answer

all of the above

Question 11

Is this a function? Explain.

Accepted Answer

Yes; it passes the vertical line test.

Answer

Yes; it passes the horizontal line test.

Answer

No; it is not a straight line.

Answer

No; there is a line connecting the dots.

Question 12

Is this a function?

Accepted Answer

Yes

Answer

No

Answer

Let me ask my dog...

Answer

Why are there letters in math?

Question 13

Is this mapping a function or not a function?

Accepted Answer

Function

Answer

Not a Function

Question 14

Is the relation a function? Why.

Accepted Answer

No, because the x-value 11 has two y-values pair with it.

Answer

Yes, because the x-value 11 has two y-values pair with it.

Answer

Yes, because each x-value has only one y-value paired with it.

Answer

No, because each x-value has only one y-value paired with it.

Question 15

Which graph does NOT pass the vertical line test?

Accepted Answer

Graph 1

Answer

Graph 2

Answer

Graph 3

Answer

Graph 4

Question 16

Which set of values is not a function?

Accepted Answer

(3,4) (4,-3) (7,4) (3, 8)

Answer

(9,5) (10,5) (4,-5) (8,-5)

Answer

(6,-5) (7, -3) (8, -1) (9, 1)

Answer

(2, -2) (5, 9) (-5, -7) (1, 4)

Question 17

If f(x) = 2x+1, what would the function look like once you substitute in a 1 to find f(1)?

Accepted Answer

f(1) = 2 (1) + 1

Answer

f(x) = 21+1

Answer

f(1) = 2x (1) + 1

Question 18

If f(x) = x²-x+3, what would the function look like once you substitute in a -3 to find f(-3)?

Accepted Answer

f(-3) = (-3)² -(-3)+3

Answer

f(-3) = -3²-3+3

Answer

f(-3) = (-3)² -3+3

Functions and Relations

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