Question

Parallelogram ABCD ​ is a rectangle.

AC=6y−1

BD=4y+13



What is the value of y?

Answer 1

For AC = 6y - 1,
y = 1/6 + AC/6

For BD = 4y + 13,
y = -13/4 + BD/4

Answer 2

Answer: 7

Explanation:

Since it is a rectangle, AC = BC

so 6y-1 = 4y+13 and you can just do the algebra to simplify.

6y = 4y + 14

2y = 14

y = 7