Function Notation

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

• 100

• 19

• 99

• 9

Using f(x) , g(x) , or h(x) instead of y is called using ......

• Slope Notation

• Variable Notation

• Intercept Notation

• Function Notation

Evaluate for f(1)

• 0
• -3
• 3
• 2

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

• Let x = 2

• Let y = 2

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

• f(1) = 1

• f(1) = 4

• f(1) = 0

• f(1) = 3

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.

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

• -1
• 1
• 5
• -5

For the function f(x) = -3(x-1) find f(0).

• 0
• -3
• 3
• -1