Question

Here are the coordinates for eight points on the coordinate plane (q>p>0): A(0,0), B(p,0), C(q,0), D(p+q,0), E(0,q), F(p,q), G(q,q),and H(p+q,q). Which four points, if any, are on the vertices for a rectangle?

Answer 1

here's a start..using this grid i've drawn, and noticing p and q on my axes, plot some of the given points