Day 1 - 5 Review

Evaluate f(-2) if f(x) = x²+ 3

• -1

• 1

• 7

• -7

If h(a) = 3 - 2x², find h(-3).

• 33
• 21
• 39
• -15

What is f(1)?

• 1
• 5
• 0
• 4

What is x if
f(x) = -2?

• 4
• 0
• 3
• 8

f(x) is the same thing as ______.

• y
• x
• input
• an equation

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

• Let x = 2

• Let y = 2

Let w(x) = 3x - 7. If w(x) = 14, find x.

• 7

• 35

• 2.33333

• -49

How do you read f(x)?

• f x

• f parenthesis x

• f of x

• f with an x inside parenthesis

Given f(x) = 4x - 10 and f(x) = 10. Find x

• x = 14

• x = -6

• x = -50

• x = 5

In order to be a function the following must be true.

• each x value has only one y value
• each y value has only one x value
• each x  has only one y & each y has only one x 
• each x and y are equal