2A Evaluating and Transforming Functions

• f(-2) = -1

• f(-2) = -9

• f(-2) = 9

• f(-2) = 0

Evaluate r(3)

• r(3) = 16

• r(3) = 12

• r(3) = 13

• r(3) = 0

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

• y = 2x-3

• f = 2x - 3

• f(x) = 2x-3

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

• Plug a 1 in for all the x's

• Set the function equal to 1

• Only plug a 1 into the left side

• Only plug a 1 into the right side

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.

f(x) is the same thing as ______.

• y
• x
• input
• an equation

What is the domain?

• None of the answer choices

What is the range?

• [-3, 4]

• (-3, 4)

• (-3, 4]

• (-2, 3]

• [4, -3]

Fill in the blank:
 $f\left(3\right)=$  _____

• 0

• -1

• 4

• 1

• 2

Fill in the blank:
 $f\left(0\right)=$  _____

• -2

• 4

• -3

• -4

• 1