Linear Functions and Nonlinear

Which equation matches the table?

• y=2x

• y=x-3

• y=x+2

• y=1/2x

Which equation is being represented by this line?

• y = -1x + 2

• y = 1/2x + 2

• y = 3x -4

• y = -3x +2

What is the y-intercept?

• 7

• 0

• 1

• 2

Does this mapping diagram represent a function?

• No, because there are repeating input values

• Yes, because there are no repeating input values

Sonia has $40 in her lunch account and pays $2 each day to eat lunch.

• Linear

• Non-linear

Is the function Linear or Nonlinear?

• Linear

• Nonlinear

Which function is linear?

• y = 2x + 4

• y = 2x² + 4

• y = 2x(4 − 3x)

• xy = 15

Which statements below determine when a function is linear? Select two answers

• The function can be represented by an equation of the form y = mx + b.

• The rate of change is always constant.

• The initial value must be at 0

• The graph of the function could be a vertical line.

• The graph can contain curves.

Which of these functions are linear?

Select two answers.

• 
• 

Is this function Linear or nonlinear?

• linear

• nonlinear