Evaluate Functions

What is f(−4) for the function f?

f(x) = 2x + 3

• -5

• -4

• -2

• -7

Tags

CCSS.HSF.IF.A.2

What is f(5) for the function f?

f(x) = 2(x - 7)

• 3

• -4

• -3

• 1

Tags

CCSS.HSF.IF.A.2

If f(x) = 5 + 4(x – 4)²,

what is f(7)?

• 81

• 29

• 41

• 54

Tags

CCSS.HSF.IF.A.2

For the function f(x) = 4x + 2, find x such that f(x) = 2.

• 10

• 2

• -2

• 0

Tags

CCSS.HSF.IF.A.2

If f(x) = 5 - 3x, what is f(x - 1)?

• 2x + 3

• 2x - 3

• -3x + 8

• -3x + 2

Tags

CCSS.HSF.IF.A.1

CCSS.8.F.A.1

f(x) = 5x + 3
Find f(4x).

• 23x
• 20x + 3
• 4x + 3
• 9x + 3

Tags

CCSS.HSF.IF.A.2

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

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

f(x) is the same thing as ______.

• y
• x
• input
• an equation

Tags

CCSS.HSF.IF.A.1

If f(x) = 2x+1, what would the function look like once you substitute in a 1 to find f(1)?

• f(x) = 21+1

• f(1) = 2 (1) + 1

• f(1) = 2x (1) + 1

Tags

CCSS.HSF.IF.A.2