Quiz about Function Notation

Question 1

How would you write y = 2x - 3 in function notation?

Accepted Answer

f(x) = 2x-3

Answer

y = 2x-3

Answer

f = 2x - 3

Question 2

If a question asks you to find f(2), what does that mean?

Accepted Answer

Let x = 2

Answer

Let y = 2

Question 3

If f(x) = 2x + 1, what would be your first step to find f(1)?

Accepted Answer

Plug a 1 in for all the x's

Answer

Set the function equal to 1

Answer

Only plug a 1 into the left side

Answer

Only plug a 1 into the right side

Question 4

If f(x) = 2x + 1, find f(1).

Accepted Answer

f(1) = 3

Answer

f(1) = 1

Answer

f(1) = 4

Answer

f(1) = 0

Question 5

If I know that f(2) = 4, what is another way I can write my answer?

Accepted Answer

(2, 4)

Answer

2,4

Answer

That is the only way to write it.

Question 6

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

Accepted Answer

1

Answer

-1

Answer

5

Answer

-5

Question 7

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

Accepted Answer

3

Answer

0

Answer

-3

Answer

-1

Question 8

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

Accepted Answer

f(-1) = -20

Answer

f(-1) = -24

Question 9

Given f(x) = -4x - 10 and f(x) = 10. Find x

Accepted Answer

x = -5

Answer

x = 5

Answer

x = -50

Answer

x = 30

Question 10

What is f(1)?

Accepted Answer

5

Answer

1

Answer

0

Answer

4

Question 11

What is x if
f(x) = -2?

Accepted Answer

8

Answer

4

Answer

0

Answer

3

Question 12

What is f(8)?

Accepted Answer

-2

Answer

8

Answer

0

Answer

3

Question 13

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 14

f(x) is the same thing as ______.

Accepted Answer

y

Answer

x

Answer

input

Answer

an equation

Question 15

Given g(x) =
4x - 7, find g(-9).

Accepted Answer

g(-9) = -43

Answer

g(-9) = 29

Function Notation

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