Quiz about Unit 3: Relations & Functions

Question 1

For the function {(0,1), (1,-3), (2,-4), (-4,1)}, write the domain and range.

Accepted Answer

D:{-4, 0, 1, 2, }

R:{-4, -3, 1}

Answer

D: {1, -3, -4,}

R: {0, 1, 2, -4}

Answer

D:{0, 1, 2, 3, 4}

R:{1, -3, -4}

Answer

D:{0, 1, 2, 3}

R:{0, 1, 2, 3, 4}

Question 2

Does this mapping diagram represent a function?

Accepted Answer

Yes, because there are no repeating input values

Answer

No, because there are repeating input values

Question 3

Question 3.

Accepted Answer

Function

Answer

Not a Function

Question 4

Which relation is NOT a function?

Accepted Answer

{(1,-5), (-1,6), (1,5), (6,-3)}

Answer

{(1,-5), (3,1), (-5,4), (4,-2)}

Answer

{(2,7), (3,7), (4,7), (5,8)}

Answer

{(3,-2), (5,-6), (7,7), (8,8)}

Question 5

For h(x) = x³ + 2x, find h(4).

Accepted Answer

72

Answer

20

Answer

14

Answer

64

Question 6

Is this mapping a function or not a function?

Accepted Answer

Not a Function

Answer

Function

Question 7

If f(x) = -4x - 5 and g(x) = 3 - x,

what is g(-4) + f(1)?

Accepted Answer

-2

Answer

7

Answer

-9

Answer

-10

Question 8

Does this relation represent a function?

Accepted Answer

No

Answer

Yes

Question 9

What test is used to determine if a graphed relation is a function?

Accepted Answer

The Vertical Line Test

Answer

The Horizontal Line Test

Answer

The Diagonal Line Test

Answer

The Litmus Test

Question 10

Question 10.

Accepted Answer

Function

Answer

Not a Function

Question 11

Is this relation a function?

Accepted Answer

Function

Answer

Not a Function

Question 12

Is this a function?

Accepted Answer

Yes

Answer

No

Question 13

Give the domain and range of the relation.

Accepted Answer

D: {-3, 0, 3, 10}; R: {-5, 0, 7, 21}

Answer

: {-5, 7, 21}; R: {-3, 3, 10}

Answer

D: {-5, 0, 7, 21}; R: {-3, 0, 3, 10}

Answer

D: {0}; R: {3, 10, -3, 7, 21, -5}

Question 14

Is this relation a function?

Accepted Answer

no

Answer

yes

Question 15

Question 15.

Accepted Answer

Not a Function

Answer

Function

Question 16

Is the relation shown a function?

Accepted Answer

NO

Answer

YES

Question 17

Evaluate f(-2) if f(x) = x+3

Accepted Answer

1

Answer

-1

Answer

5

Answer

-5

Question 18

If g(x)=2x²- 7x, find g(-1).

Accepted Answer

9

Answer

6

Answer

-9

Answer

-5

Question 19

Give the domain and range of the relation.
{(-2,-1), (-1,0), (0,-1), (1,0), (2,-1)}

Accepted Answer

D: {-2, -1, 0, 1, 2}
R: {-1, 0}

Answer

D: {-1, 0}
R: {-2, -1, 0, 1, 2}

Answer

D: {-2, -1, 0, 1, 2}
R: {-1, -1, -1, 0, 0}

Answer

D: {-2 < x < 2}
R: {-1 < y < 0}

Question 20

Is the relation a function?

Accepted Answer

YES

Answer

NO

Question 21

Is this graph a function or not a function?

Accepted Answer

Function

Answer

Not a Function

Question 22

For the function f(x) = -3(x - 1) find f(0).

Accepted Answer

3

Answer

0

Answer

-3

Answer

-1

Question 23

Given f(x) = 2x² + 5x - 17, find f(-1).

Accepted Answer

f(-1) = -20

Answer

f(-1) = -24

Question 24

What are the zeros (x-intercepts)?

Accepted Answer

x = -2, 2, 0

Answer

x = 2, -2

Answer

x = 2,0

Answer

x = -4, -2, 2 ,0

Question 25

Which is a zero of the graph?

Accepted Answer

-1

Answer

0

Answer

1.5

Answer

-3

Question 26

What are the zeros of the function?

Accepted Answer

-3, -1, 2, 5

Answer

4,1

Answer

3,1,-2,-5

Answer

-2,4

Question 27

Identify the zeros of 2x²- 12x - 32.

Accepted Answer

-2, 8

Answer

2, -8

Answer

4, 8

Answer

-4, 8

Question 28

What is the domain?

Accepted Answer

All Real Numbers

Answer

x = 2

Answer

y = 2

Answer

none of these

Question 29

IS THIS GRAPH DISCRETE AND CONTINUOUS?

Accepted Answer

DISCRETE

Answer

CONTINUOUS

Question 30

IS THIS GRAPH DISCRETE AND CONTINUOUS?

Accepted Answer

CONTINUOUS

Answer

DISCRETE

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