Question

1.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.

2.The coordinates of the vertices of quadrilateral JKLM are J(-3,2), K(4,-1), L(2,-5) and M(-5,-2).

Find the slope of each side of the quadrilateral and determine if the quadrilateral is a parallelogram.

Answer 1

This is what I put "I used the m=y2-y1/ x2-x1 to solve for the slopes (-1,3) and (1,2) has a slope of -1/2. (1,2) and (-3,-1) has a slope of 3/4. (-1,3) and (-3,-1) has a slope of 2. I plotted this on a graph and came to the conclusion that is was an acute isosceles triangle."