Unit 3 review

Slope is another word for:

• Initial Value
• Rate of Change
• Change in Y's
• Y-intercept

What is the definition of function?

• Has inputs and outputs

• Every input has only ONE output

  The situation makes sense

• Inputs have different outputs every time

• x-values and y-values

Is the table linear or nonlinear?

• Linear
• Nonlinear

• It is a function because each x has only one y.
• It's not a function because an x has multiple y's.
• It's not a function because a y has multiple x's.
• It is a function because each y has only one x.

In the equation, y = mx + b, the letter b is the ___________.

• y-intercept
• x-intercept
• slope
• rate of change

Which is the graph of y= -x + 2?

• A
• B
• C
• D

• Function
• Not a Function

Bob has $150 in his savings account and saves $40 per month. Which function models his savings?

• y = 150 + 40

• y = 40x + 150

• y = 150x + 40

Consider the equation:
y=-x+4
Identify the slope and y-intercept.

• m=4, b=-x
• m=-x, b=4
• m=1, b=4
• m=-1, b=4

Which graph is linear?

• Graph A
• Graph B
• Graph C
• Graph D