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FLORIDA Pre-Algebra Teacher’s Guide Vol. A

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LESSON GOALS • Determine the slope and unit rate of a line using its graph. • Determine the equation of a line that passes through the origin. • Explain what the slope of a line represents in a real-world situation. • Compare linear relationships represented in different forms. • Graph the equation of a line that intersects the origin. FLORIDA STANDARDS • MAFS.8.EE.2.5 Graph proportional relationships, interpreting the unit rate as the slope of the graph. Compare two different proportional relationships represented in different ways. • MAFS.8.EE.2.6 Use similar triangles to explain why the slope m is the same between any two distinct points on a non-vertical line in the coordinate plane; derive the equation y = mx for a line through the origin and the equation y = mx + b for a line intercepting the vertical axis at b. • MAFS.8.F.1.2 Compare properties of two functions each represented in a different way (algebraically, graphically, numerically in tables, or by verbal descriptions). PACING One class period, approximately 60 minutes OFFLINE LEARNING: SLOPE The Extended Problems give students an opportunity to use higher-order thinking and critical reasoning skills to apply what they have learned about slope. Students complete these extended response problems offline and submit their responses to be graded. MATERIALS • Extended Problems • Answer Key: Extended Problems Extended Problems Use this guide to accompany Lesson 3.14, Semester A. 192 EXTENDED PROBLEMS

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