Question

A base of a parallelogram is on the x-axis and the origin is located at the left endpoint of that base. Three consecutive vertices are (h, j), (0, 0), and (k, 0), where h > 0.

What is the y- coordinate of the fourth vertex?

Answer 1

j because it must share the coordinate of the other vertex that's not on the x-axis.

Answer 2

yes its j as the height is restricted to being the same level as (h,j)