Parallelograms: ACT Math Practice Question

Try the following ACT math practice question that tests your understanding of parallelograms in the coordinate plane.

If points $(0,0)$, $(3,5)$, $(8,0)$, and $(5,m)$ are the vertices of a parallelogram, then $m=$

1. $\quad 8$
2. $\quad 5$
3. $\quad 3$
4. $\quad -3$
5. $\quad -5$

Choice E

Video Explanation