Question

PLZZZZZZZZZZZZ HELP ME

The coordinates of the vertices of triangle ABC are A(-1,3), B(1,2) and C(-3,-1).

Determine the slope of each side of the triangle and use that information to determine if the triangle is a right triangle or not.

Answer 1

slope 1 = 2-3 /1- -1 = -1/2   Change in A & B

slope 2 = -1-2 / -3 -1 = 3/4    Change in B & C

slope 3 = 3 - -1 / -1 - -3 = 2     Change in A & C

 since slope 1 is a negative reciprocal of slope 3

 the triangle is a right triangle