Answer: (4, 3)
Step-by-step explanation:
The formula for coordinate of the mid point is given as :
Mid point = ([tex]\frac{x_{2}+x_{1}}{2}[/tex] , [tex]\frac{y_{2}+y_{1}}{2}[/tex] )
[tex]x_{1}[/tex] = 9
[tex]x_{2}[/tex] = -1
[tex]y_{1}[/tex] = 9
[tex]y_{2}[/tex] = -3
Substituting the values into the formula , we have :
Mid-point = ([tex]\frac{-1+9}{2}[/tex] , [tex]\frac{-3+9}{2}[/tex] )
Mid-point = ( [tex]\frac{8}{2}[/tex] , [tex]\frac{6}{2}[/tex] )
Mid - point = ( 4 , 3)