How to show how to find the answer to -3 +4 -1

Which statement explains how you could use coordinate geometry to prove that quadrilateral abcd is a parallelogram? -5 -4 -3 -2 -1 t 1 2 3 4 prove that all sides are congruent and have slopes that are opposite reciprocals prove that segments ad and ab are congruent and parallel prove that opposite sides are congruent and have equal slopes prove that segments bc and cd are congruent and parallel

Graph the system: f(x)= 3/x-2; f(x)= 1/2x + 2

Multiply and simplify. 2x2y3z2 · 4xy4x2 how to do?