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OpenStudy (anonymous):
Given D(-6,-8), E(-1,7) and F(4,2) are the vertices of ⊿DEF. find each of the following. a. The slopes of all three sides. b. The lengths of all 3 sides. c. Using slope, show that this is a right triangle. d. Using lengths of sides, show that his is a right triangle. e. Find the equation of the line through D and F, in slope-intercept form.
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