Question

Given quadrilateral RSTU, tell which sides (if any) are parallel and which are perpendicular for the coordinates of the vertices.

R(-l, 1), S(l, -2), T(4, 0), U(3, 3)

Answer 1

Find the slopes of each of the four sides.

Equal slopes implies parallel lines.

Negative reciprocal slopes implies perpendicular lines.

I assume you can find the slope between two points using the slope formula.

Answer 2

yes