Prove the polygon with the coordinates is a right triangle (-1,0), (6,1), (2,4)

Question

step by step instructions

Answer 1

1.  it's helpful to make a drawing, plotting the three vertices.

2.  judging by the diagram (triangle), which two sides APPEAR to form a right angle?

3.  calculate the slopes of those two sides.

4.  if the product of the two slopes is -1, then that's a right triangle.