Question

8. For what values of x and y must the quadrilateral be a parallelogram?

(Hint: Solve for x first)

Answer 1

2x + 5 = 11
2x = 6
x = 3

y + 4 = 2x + 4
y + 4 = 2(3) + 4
y + 4 = 10
y = 6

answer
x = 3 and y = 6