Answer:
Option D. (6, 2)
Step-by-step explanation:
we know that
The formula to calculate the midpoint between two points is equal to
[tex]M(\frac{x1+x2}{2},\frac{y1+y2}{2})[/tex]
substitute
[tex]M(\frac{3+9}{2},\frac{-1+5}{2})[/tex]
[tex]M(\frac{12}{2},\frac{4}{2})[/tex]
[tex]M(6,2)[/tex]
