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Unformatted text preview: 13-3 and 13-4 How to Draw Coordinate Systems and Slope of a Nonvertical Line
A) Draw the axes and indicate the scale a. Draw x horizontally and y vertically e
b. In Geometry use the same scale for the x-axis and y-axis i. There a lot of graphs on which the horizontal and vertical scales could be chosen independently of each other c. Examples) i. Find the area of the triangle (0,4), (3,0) and (-3,0). ii. Find the perimeter of the triangle (0,2), (0,6) and (10,2) iii. Find the distance and midpoint of AB B) Slope a. Slope = , b. Vertical line i. Slope is undefined ii. (4,1), (4,8) c. Horizontal line i. Slope is 0 ii. (4,2),(2,2) d. Positive vs. Negative slope i. Positive 1. line rising left to right ii. negative 1. line falling left to right e. Theorem 13-1 i. On a nonvertical line, all segments have the same slope f. Examples i. Find the slope 1. (5,2), (-2, 4) 2. (3,1),(3,-4) 3. ...
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This note was uploaded on 05/16/2011 for the course ALGEBRA 098 taught by Professor Johnson during the Spring '09 term at Grand Valley State University.
- Spring '09