What are the coordinates of a point in Quadrant III which is 8 units away from point P?

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

Find an equation of the line perpendicular to the graph of 28x-7y=9 that passes through the point at (4,1)

Which graph represents the parent function of y=(x+2)(x-2)