Bellwork 1) How do you know if something represents a function or not? 2) Is the table a function? Days (d) Cost (c) 1 $14 2 $20 3 $25

Functions Chapter 4 I can determine if a function is linear or nonlinear based on its characteristics.

If it crosses the graph more than once it is ______ a function! once Vertical Line Test Given any vertical line, if it crosses the graph _______ it is a function. If it crosses the graph more than once it is ______ a function! once NOT Function Not a Function

Functions can be linear or nonlinear Functions are nonlinear when they don’t have a constant rate of change. Functions are linear when they have a constant rate of change (slope).

Function YES NO Vertical line test Nonlinear Function Does this graph represent a function? If it is a function, decide if it is linear or nonlinear. Explain your reasoning. Function YES NO Vertical line test Nonlinear Function because it is not a straight line.

Function YES NO Vertical line test Nonlinear Function Does this graph represent a function? If it is a function, decide if it is linear or nonlinear. Explain your reasoning. . Function YES NO Vertical line test Nonlinear Function because it is not a straight line.

Function YES NO Vertical line test Nonlinear Function Does this graph represent a function? If it is a function, decide if it is linear or nonlinear. Explain your reasoning. Function YES NO Vertical line test Nonlinear Function because it is not a straight line.

Function YES NO Vertical line test Nonlinear Function Does this graph represent a function? If it is a function, decide if it is linear or nonlinear. Explain your reasoning. Function YES NO Vertical line test Nonlinear Function because it is not a straight line.

Function YES NO Vertical line test Nonlinear Function Does this graph represent a function? If it is a function, decide if it is linear or nonlinear. Explain your reasoning. Function YES NO Vertical line test Nonlinear Function because it is not a straight line.

Function YES NO Vertical line test Linear Function because it is a Does this graph represent a function? If it is a function, decide if it is linear or nonlinear. Explain your reasoning. Function YES NO Vertical line test Linear Function because it is a straight line.

What do you notice about the equation for this function? Function YES NO nonlinear Vertical line test What do you notice about the equation for this function?

pg. 330

Independent practice pg 331

Make sure you label whether it is linear or nonlinear EXIT TICKET Create your own Function representations. One must be a sketch of a graph, and the other can be a set of ordered pairs, a mapping or a table Make sure you label whether it is linear or nonlinear