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Don’t forget to show your work!. Slope-Intercept Form Section 3.6.

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Presentation on theme: "Don’t forget to show your work!. Slope-Intercept Form Section 3.6."— Presentation transcript:

1 Don’t forget to show your work!

2 Slope-Intercept Form Section 3.6

3 Overview Using the y-intercept and the Slope to Graph a Line Equations in Slope-Intercept Form Graphing and Slope-Intercept Form Parallel and Perpendicular Lines

4 Graphing Lines Graphing by calculating two of more points Graphing without calculating y = mx + b

5 x y

6 Using the y-intercept and the Slope to Graph a Line Calculating slope –Change in y divided by change in x –Rise over run Finding y-intercept

7 Equations in Slope-Intercept Form Standard form of a linear equation Alternate form Slope-intercept equation

8 Graphing and Slope-Intercept Form Graph y = (¾) x + 5 Graph 2x + 3y = 3

9 Parallel and Perpendicular Lines Look at slope Parallel – slope are same Perpendicular – Product of slopes is –1 (or one is vertical and the other is horizontal)

10 Try This Write slope-intercept equation for a line that: –Has y-intercept (0, -1) and is parallel to 2x – 3y = 7 –Has y-intercept (0, -1) and is perpendicular to 2x – 3y = 7


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