Question

Which equation represents the area,y, of the trapezoid​

Answer 1

C. y = x^2 + 4x.

Explanation:

Area of a trapezoid = (h/2)(a + b) where h is the altitude and a and b are the lengths of the parallel sides.

So here

Area y = (x/2)(8 + 2x)

= 8x/2 + 2x^2/2

= 4x + x^2.