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28 Apr 09

Linear Functions

This module opens with a discussion of practical problems that can be solved using linear functions—calculating a runner’s desired pace, and figuring out the best cell phone plan. Along the way, the slope of a line and linear functions are defined. The module presents the slope-intercept form, the point-slope form, and the general form for the equation of a line, along with examples and interactive activities for finding each. Then, it moves to a description of a method for solving linear inequalities along with examples and interactive activities. Students are prompted to find the equation of a line given a graph and to graph a line given an equation.

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