Evaluating Functions

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

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

• 2,4

• (2, 4)

• That is the only way to write it.

Tags

CCSS.HSF.IF.A.2

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

• f(1) = 1

• f(1) = 4

• f(1) = 0

• f(1) = 3

Tags

CCSS.HSF.IF.A.2

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

• -1

• 1

• 5

• -5

Tags

CCSS.HSF.IF.A.2

f(x) is the same thing as ______.

• y

• x

• input

• an equation

Tags

CCSS.HSF.IF.A.1

Given g(x) =
 4x - 7, find g(-9). 

• g(-9) = 29

• g(-9) = -43

Tags

CCSS.HSF.IF.A.2

Given g(x) = 4x - 7 and g(x) = 13, find x.

• g(-9) = 29

• x = 5

• g(-9) = -43

• x = 5/4

Tags

CCSS.HSF.IF.A.2

What is the domain?

• None of the answer choices

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

What is the range?

• [-3, 4]

• (-3, 4)

• (-3, 4]

• (-2, 3]

• [4, -3]

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5