The vertices of a figure are labeled clockwise a(–4, 2), b(2, 4), c(7, 1), and d(–5, –3). how could you show that the figure is a trapezoid? (hint: a trapezoid has exactly one pair of parallel sides.)

You could plot the points on a coordinate plane to see if the shape was a trapezoid. To prove it, though, you could show that side AB is parallel to side CD by finding that the slope of each side is the same, using the slope formula. Then, you could show that side AD and side BC are not parallel by showing that the slopes are not the same.

let m = monomial

let t = trinomial

so, m times t = t.

monomial times a trinomial = another trinomial.