Answer:
Step-by-step explanation:
[tex](9,2) . (-7,-9)\\x_{1} =9\\y_{1} =2\\x_{2} = -7\\y_{2}=-9\\ Midpoint =[\frac{x_{1}+x_{2} }{2} , \frac{y_{1}+y_{2} }{2}]\\M.P = [\frac{9+(-7)}{2} , \frac{2+(-9)}{2} ]\\M.P = [\frac{9-7}{2} , \frac{2-9}{2} ]\\M.P = [\frac{2}{2} , \frac{-7}{2} \\M.P = [1 , -7/2][/tex]
