Quiz about Evaluating Functions

Question 1

If f(x)=6x²-4,
what is f(-1)?

Accepted Answer

2

Answer

-2

Answer

13

Answer

0

Question 2

Evaluate f(x)=-2x+13   for f(10)

Accepted Answer

-7

Answer

1

Answer

-8

Answer

7

Question 3

f(x)=4x+5
f(4)=

Accepted Answer

21

Answer

-11

Answer

-31

Answer

25

Question 4

f(x)=x²-5x
f(4)=

Accepted Answer

-4

Answer

126

Answer

24

Answer

84

Question 5

Evaluate f(x) = x² for f(-8)

Accepted Answer

64

Answer

-64

Answer

-16

Answer

16

Question 6

Evaluate f(t)=-2t²+ 1 for f(-3)

Accepted Answer

-17

Answer

19

Answer

37

Answer

-11

Question 7

Evaluate f(t)=-2t²+ 1 for f(2)

Accepted Answer

-7

Answer

9

Answer

17

Answer

-17

Question 8

g(x) = 5 - 6x
Find g(-5)

Accepted Answer

g(-5) = 35

Answer

g(-5) = -25

Answer

g(-5) = 6

Answer

g(-5) = 4

Question 9

f(x) = 3x² - 11
Find f(-5)

Accepted Answer

f(-5) = 64

Answer

f(-5) = -86

Answer

f(-5) = 214

Answer

f(-5) = -7

Question 10

Evaluate the function for the given value:

Accepted Answer

-4

Answer

50

Answer

6

Answer

84

Question 11

Evaluate the function for the given value:

Accepted Answer

63

Answer

-5

Answer

450

Answer

5

Question 12

The function h(t) represents the height in inches of a plant after t weeks. What does the notation h(4) = 5 mean?

Accepted Answer

After 4 weeks the plant is 5 inches tall

Answer

After 5 week the plant is 4 inches tall

Answer

The plant grows at a rate of 5/4 inch per week

Answer

The plant grows at a rate of 1 inch per week

Question 13

Ms. Brackemyer is collecting pencils.  The function p(x)=5x+12 tells us the total amount of pencils Ms. Brackemyer has after collecting for x number of days.  What is the meaning of p(8)=52?

Accepted Answer

After 8 days, Ms. Brackemyer has 52 pencils.

Answer

Ms. Brackemyer starts with 8 pencils and ends with 52.

Answer

Ms. Brackemyer starts with 52 pencils and gets 4 more every day.

Answer

Every day, Ms. Brackemyer gets 4 new pencils until she has 52.

Question 14

The function c(m) = 1.45m + 3.50 represents the cost of a taxi for m miles.
What does c(7) represent?

Accepted Answer

The cost to ride 7 miles

Answer

A cost of $7 to ride the taxi

Answer

The minimum distance to ride a taxi

Answer

The minimum cost of a taxi

Question 15

A company is selling bubble gum.  The function g(x)=3x+4 tells the company how much to charge if someone buys x packages of bubble gum.  Find g(8) and tell what it means within the context of the problem.

Accepted Answer

g(8)=28.  This means that 8 packages of gum costs $28.

Answer

g(8)=8.  This means that after 8 packages of gum, the company makes $8.

Answer

g(8)=42.  This means that 8 packages of gum costs $42.

Answer

g(8)=24.  This means that 8 packages of gum costs $24.

Evaluating Functions

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