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3.1a - FUnction Notation Review

Total questions: 10

Worksheet time: 28mins

Name
Class
Date
1.

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

a)

y = 2x-3

b)

f = 2x - 3

c)

f(x) = 2x-3

2.

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

a)

Let x = 2

b)

Let y = 2

3.

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

a)

Plug a 1 in for all the x's

b)

Set the function equal to 1

c)

Only plug a 1 into the left side

d)

Only plug a 1 into the right side

4.

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

a)

f(1) = 1

b)

f(1) = 4

c)

f(1) = 0

d)

f(1) = 3

5.
f(x) is the same thing as ______.
a)
y
b)
x
c)
input
d)
an equation
6.
Given g(x) =
 4x - 7, find g(-9). 
a)
g(-9) = 29
b)
g(-9) = -43
7.
Which graph does NOT pass the vertical line test?
a)
Graph 1
b)
Graph 2
c)
Graph 3
d)
Graph 4
8.
a)
It is a function because no vertical lines hit it twice.
b)
It's not a function because a vertical line hits it twice.
c)
It's not a function because no vertical lines hit it twice.
d)
It is a function because a vertical line hits it twice.
9.
a)
It is a function because no vertical lines hit it twice.
b)
It's not a function because a vertical line hits it twice.
c)
It's not a function because no vertical lines hit it twice.
d)
It is a function because a vertical line hits it twice.
10.

How do you read f(x)?

a)

f x

b)

f of x

c)

f parenthesis x

d)

f with an x inside parenthesis