Respuesta :

You divide the x coordinates of the a and b
Ver imagen meowie508

Answer:

(0,-5)

Step-by-step explanation:

To find midpoint the formula is

([tex]\frac{x1+x2}{2}[/tex] , [tex]\frac{y1+y2}{2}[/tex])

So plug in the numbers

([tex]\frac{2+(-2)}{2}[/tex], [tex]\frac{-1+(-9)}{2}[/tex]) = ( [tex]\frac{0}{2}[/tex] , [tex]\frac{-10}{2}[/tex])

Simplify it and it equals (0,-5)