Day 7 - Classwork - Functions vs. Linear Functions

Which equations represent nonlinear functions? Select all that apply.

• y= 3x - 4

• y = 9x² + 7x

• y = x

• y = 2x³

• 2x² = y + 4

Which of the function(s) above are linear?

• Function I, only

• Function II, only

• Function I and Function II, only

• Function I, Function II, and Function III

Which of the graphs above are nonlinear?

• Graph I, only

• Graph II, only

• Graph I and Graph II, only.

• Graph I, Graph II, and Graph III

Which answer choice is true?

• The table represents a linear function because there is a pattern for the x-coordinates and y-coordinates.

• The table represents a linear function because the ratio of the change in the y value and the change in the x value is constant.

• The table represents a nonlinear function because the ratio of the change in the y value and the change in the x value is not constant.

• The table does not represent a function because there is more than one output for at least one input.

Why is this function linear?

• This is a linear function because it does not have a constant rate of change

• This is a linear function because it creates a curved line.

• This is a linear function because it has a constant rate of change.

• This is a linear function because it's y-intercept is (0,2)

Is the table linear or nonlinear?

• Linear

• Nonlinear

Which of the following is not a function?

• 
• 
• 
• 

Which table does NOT represent a function?

• 
• 
• 
• 

Is this graph a function or not a function?

• Function

• Not a Function

Is this graph a function or not a function?

• Function

• Not a Function