SOLUTION: Use the concept of slope to determine whether the given figure is a right triangle (i.e., does the triangle contain a right angle?). (2,3) (2, -2) (-1,-3)

Algebra ->  Linear-equations -> SOLUTION: Use the concept of slope to determine whether the given figure is a right triangle (i.e., does the triangle contain a right angle?). (2,3) (2, -2) (-1,-3)      Log On


   

Question 901053: Use the concept of slope to determine whether the given figure is a right triangle (i.e., does the triangle contain a right angle?). (2,3) (2, -2) (-1,-3)
Found 2 solutions by ewatrrr, josgarithmetic:
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
(2,3)
(2, -2) m = 5/0 Vertical Line (NO Slope)
(-1,-3) m = 1/3
(2 ,3) m = -6/-3 = 3/1
NO right angle

Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
Find slopes of all pair of points.

%283-%28-2%29%29%2F0=vertical+line first two points listed;

%28-2-%28-3%29%29%2F%282-%28-1%29%29=1%2F3

%283-%28-3%29%29%2F%282-%28-1%29%29=6%2F3=2

No two slopes are negative reciprocals of each other, so the points do not form a right triangle.