Could the points (-4,3), (-1,1) and (1,3) form the vertices of a right triangle? Why or why not?
A)
Yes, a2 + b2 = c2.
B)
No, a2 + b2 ≠ c2.
C)
Yes, (1,3) is a right angle.
D)
Yes, (-4, 3) is a right angle.

Question

Could the points (-4,3), (-1,1) and (1,3) form the vertices of a right triangle? Why or why not?
A)
Yes, a2 + b2 = c2.	
B)
No, a2 + b2 ≠ c2.	
C)
Yes, (1,3) is a right angle.	
D)
Yes, (-4, 3) is a right angle.

anonymous · Answer

To find out if two equations are perpendicular, look at their slopes. The slopes of perpendicular lines are opposite reciprocals of each other.

anonymous · Answer

compare the the line that goes through (-1,1) and (1,3) with the line that goes through (-1,1) and (-4,3) to see if they are perpendicular

sleepyjess · Answer

Have you tried plotting the points?