Just reverse the operation, that is ....
the 3 is the result of 4 having been subtracted from some number
- it must have been 7
use the same argument to find the y of the point, so it will be (7, ?)
what is the preimage of (3,5) under the translation (x,y) > (x - 4,y + 6)
2 answers
Okay? What about the Y