Image point b (4,-8) was transformed using the translation (x-2,y+3) what were the coordinates of b?

The coordinates of the image point are given to be B(4, -8). We are to find the coordinates of pre-image that is the coordinates before the translation.

The translation made was (x-2, y+3) 

This means, the x coordinate was moved 2 units to left and y coordinate was moved 3 units above. 

So, the coordinates of original point will be, 2 units to right of B and 3 units down of B.

So the coordinates will be (6, -11)
 

Answer d; a supplementary angle = 180°, so if that angle = 150°, y would = 30°.