answer if you want 64 points.
first answer brainliest.

HII THN ...DJSNSJJENSN

Thanks!

Step-by-step explanation:

I don't know if i'm right, but i'm pretty sure you'd have to translate B point from the square 3 squares to the left (x) and 8 to the bottom (y) which would give us the new coordinates for the new B' point, they should be x:-2 y:-6 (-2,-6) so -6 is your answer!