Math 7B, Lesson 3, Spring 2022, 2/13/2022

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10.3 Slopes of Linear Graphs

  1. 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

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