2.2 Linear Functions & Function Notation

How do you read f(x)?

• f x

• f of x

• f parenthesis x

• f with an x inside parenthesis

Tags

CCSS.HSF.IF.A.1

f(x) is the same thing as ______.

• y
• x
• input
• an equation

Tags

CCSS.HSF.IF.A.1

CCSS.HSF.IF.A.2

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

• y = 2x-3

• f = 2x - 3

• f(x) = 2x-3

Tags

CCSS.HSF.IF.A.2

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

• Let x = 2

• Let y = 2

Tags

CCSS.HSF.IF.A.2

Given f(x) = 2x-3, what is the value of f(3)?

• 9

• 2

• 3

• 1

Given f(x) = x² - 1, what is the value of f(10)?

• 100

• 101

• 99

• 9

Tags

CCSS.HSF.IF.A.1

CCSS.HSF.IF.A.2

Given f(x)= (2 + x )², what is the value of f(-3)?

• 1

• 25

• -1

• 5

Tags

CCSS.HSF.IF.A.1

CCSS.HSF.IF.A.2

If f(x) = -4x - 5 and
g(x) = 3 - x,
what is g(-4) + f(1)?

• 7
• -2
• -9
• -10

Tags

CCSS.HSF.IF.A.1

CCSS.HSF.IF.A.2

What is f(1)?

(Click on the graph to make it larger if needed)

• 1

• 5

• 0

• 4

What is f(8)?

(Click on the graph to make it larger if needed)

• 8

• 0

• 3

• -2