## 10.3 Slopes of Linear Graphs

**Slope: the measure of the steepness of a straight line.**

The **slope** of a line is the measure of the ratio of **vertical rise** and **horizontal run**.

**The slope of a line = Rise/Run = Vertical change/Horizontal change**

Positive slope, negative slope, special slopes for horizontal line and vertical line

**2. The slope for any line with two points on the line A(x1, y1) and B(x2, y2)**

**The slope of a line = Rise/Run = (y2 – y1)/(x2 – x1)**

Lots of examples in class.

HW:

- Handout
- 2 pages

- Workbook:
- page 11: 9, 10;
- page 12: 11;
- page 13: 17