1. Linear and Nonlinear Functions
Teacher Twins©2014

2. Warm Up
D= -7,2,4,8 R = -5,0,3,9
D= -4,0,8 R = -6,0,3,9
D= -3,0,3,8 R = -5,-1,0,7
D= -5,-3,7 R = -7,2,8,12
Range
Range
Domain
Domain

3. Linear and Nonlinear Functions

4. line
line

5. linear
nonlinear
linear
linear
nonlinear
linear

6. nonlinear linear linear nonlinear
Tell whether the function is linear or nonlinear without using a calculator. Explain how you know.
y = 2x2 + 1
y = x
y = -3x -8
y = -4x2 + 2x - 9
nonlinear
linear
linear
nonlinear

7. Write rules for identifying linear and nonlinear functions.