answer is D
Explamation:
given points are (7,9) and (12,11)
[tex]mid \: point \: of \: x = \frac{x1 + x2}{2 } = \frac{7 + 12}{2} = 9.5 \\ midpoint \: of \: y = \frac{y1 + y2}{2} = \frac{9 + 11}{ 2} = 10[/tex]
therefore the mid point is (9.5,10)
