Chapter 8 – Functions and Graphing

8.4 - Slope

The Tile Problem

Create a table to show the pattern.

Dark White

1

2

3

4

5

What expression can we use to show the relationship between the dark and white tiles?

w = 2d + 6Where else can we find a “2” in a pattern?

Slope

• The slope m of a line describes its steepness.

• The vertical change is called the change in y.

• The horizontal change is called the change in x.

Formulas for Slope

Slope or m = change in y

change in x

m = . y2 – y1

x2 – x1

m =rise

run

The House That Slope Built

Zero Slope…Zero Fun!

Positive Slope Negative Slope

No Slope!!!

NOT SAFE!!!

Graph a line that passes through (-2, 3) and (3, -3). Find the slope of the line.

Find the slope of the line that contains A(2,6) and B(-3, -8). Then graph the line.

Find the slope of each line.

Find the slope of each line.

Questions?

• Homework:

8.4 WKS