Answer:
(-1 , -1)
Step-by-step explanation:
[tex] x_1= 3
\\ y_1= 5
\\ x_2=1
\\ y_2= 3[/tex]
[tex]midpoint \: = ( \frac{
x_2 - x_1}{2} \: \frac{y_2 -y_1}{2} )[/tex]
[tex] =( \frac{1 - 3}{2} \: \frac{3 - 5}{2} ) \\ = ( \frac{ - 2}{2} \: \frac{ - 2}{2} ) = \\ ( - 1 \: - 1)[/tex]
