Point m is the midpoint of ab. the coordinates of point a are (-7, 3) and the coordinates for m are (-3, 3). what are the coordinates of point b?
its due

   the coordinates of point B are :   xB = 1 and   yB = 3

Step-by-step explanation:

the coordinates of M are :  xM       = (xA +xB )/2

                                              yM  = (yA +yB )/2

since :   xM = -3   and    yM = 3

              xA = -7  and    yA = 3

so :   -3 = (-7 +xB )/2  

         3  = (3 +yB )/2  

-6 = -7 +xB

6= 3 +yB

xB = 1 and   yB = 3