Here is an ACT math practice question on solutions of linear system of equations.

$$ x – 2y = 4 $$
$$ 2x + my = 8 $$
For what value of $m$ will the system of equations above have
an infinite number of solutions?

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

The following exponent problem illustrates some of the common mistakes that students make when it comes to simplifying exponent expressions. I have selected this problem based on the types of problems tested on the ACT Math. Please attempt the problem and review the video where I highlight the common temptations in these types of problem.