2­13­17 ­ Module 4 ­ Lesson 15

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Monday, February 13, 2017

Students know that slope is a number that describes the steepness or slant of a line, and students interpret the unit rate as the slope of a graph.

Solve each equation.

2(x + 3) = 12

3(x - 9) = 2x - 9 + x - 18

2­13­17 ­ Module 4 ­ Lesson 15

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Slope - A ratio that describes both the direction and steepness of a line.

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a. Which graph is steeper?

b. Write directions that explain how to move from one point on the graph to the other for both Graph A and Grab B.

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c. Write the directions from part (b) as ratios, and then compare the ratios. How does this relate to which graph was steeper in part(a)

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