Answer
$(4, 6)$
Work Step by Step
RECALL:
The midpoint of $(x_1, y_1)$ and $(x_2, y_2)$ can be found using the midpoint formula
$\text{midpoint}=\left(\frac{x_1+x_2}{2}, \frac{y_1+y_2}{2}\right)$
Use the formula above to obtain:
$\text{midpoint}=\left(\frac{6+2}{2}, \frac{8+4}{2}\right)=\left(\frac{8}{2}, \frac{12}{2}\right)=(4, 6)$