Find the coordinates of points A and B:
A is located at (-3,-3) and Point B is at (6,6)
To find the midpoint, add the two x coordinates together and divide by 2, then do the same with the Y coordinates:
X = -3 + 6 = 3/2
y = -3 +6 = 3/2
Midpoint = (3/2,3/2) as a fraction or (1.5,1.5) as decimals