Functions, Linear and Non Linear

• It is a function because no vertical lines hit it twice.

• It's not a function because a vertical line hits it twice.

• It's not a function because no vertical lines hit it twice.

• It is a function because a vertical line hits it twice.

• It is a function because no vertical lines hit it twice.
• It's not a function because a vertical line hits it twice.
• It's not a function because no vertical lines hit it twice.
• It is a function because a vertical line hits it twice.

• It is a function because no vertical lines hit it twice.
• It's not a function because a vertical line hits it twice.
• It's not a function because no vertical lines hit it twice.
• It is a function because a vertical line hits it twice.

Which of the following statements is true about a function?

• A graph passes the horizontal line test

• A mapping has one arrow leaving each x value.

• A table has repeated x's with different y values

• All of these are true.

Check the correct answers: In order to be a linear function:

• It's graph must have a straight line

• It must pass a polygraph test

• Each x-value has only one y-value

• A parabola is a Linear Function

Which of these functions are linear?

Select two answers.

• 
• 

Is function represented by the table linear or nonlinear?

• linear

• nonlinear

Find the rate of change

• 1

• 2

• 11

• Not a constant slope/Non-Linear

Is this function Linear or nonlinear?

• linear

• nonlinear 

Slope is another word for:

• Initial Value

• Rate of Change

• Change in Y's

• Y-intercept