SOLUTION: 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 t

Algebra ->  Triangles -> SOLUTION: 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 t      Log On


   

Question 1061425: 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 by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
m%5B1%5D=%282-3%29%2F%281-%28-1%29%29=-1%2F2
m%5B2%5D=%28-1-2%29%2F%28-3-1%29=-3%2F%28-4%29=3%2F4
m%5B3%5D=%283-%28-1%29%29%2F%28-1-%28-3%29%29=4%2F2=2
.
.
.
Since m%5B1%5D%2Am%5B3%5D=%28-1%2F2%29%282%29=-1, two lines are perpendicular so it is a right triangle.