A1-U4.5 Linear Functions

4.5 Linear Functions

We are going to graph linear equations written in function notation.

Objective:

Function Notation - f(x) = y

Domain - input (x)

Range - output (y)

Concepts:

​Example 1:

​Graph: f(x) = -3x - 4

y-int = -4, starting point

Slope = -3/1

Rise = -3, down 3

Run = 1, right 1 or

Slope = 3/-1

Rise = 3, up 3

Run = -1, left 1

​Example 2:

​Graph: f(x) = 4x + 4
Domain: {-3, -2, -1, 0, 1}

​Example 3:

Linear or Non-Linear?