Question

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.