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?). Here are the coordinate points of the triangle.

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?). Here are the coordinate points of the triangle.      Log On


   

Question 677084: Use the concept of slope to determine whether the given figure is a right triangle (i.e., does the triangle contain a right angle?). Here are the coordinate points of the triangle. (-2,5) and (6,1) and (-1,2). Is this a right triangle?
Answer by ReadingBoosters(3246) About Me  (Show Source):
You can put this solution on YOUR website!
To form a right angle, the lines must be perpendicular.
Perpendicular lines have negative inverse slopes.
...
(-2,5) and (6,1)
slope = %285-1%29%2F%28-2-6%29+=+4%2F-8+=+-1%2F2
...
(-2,5) and (-1,2)
slope = %285-2%29%2F%28-2--1%29+=+3%2F-1+=+-3
...
(6,1) and (-1,2)
slope = %281-2%29%2F%286--1%29+=+-1%2F7
...
The endpoints do NOT create a right triangle, as not of the line segments are perpendicular.
.....................
Delighted to help; feel free to email if you have further questions.
HomeworkHelpers@readingboosters.com
-Reading Boosters
Website: www.MyHomeworkAnswers.com
Wanting for others what we want for ourselves.