Alicia is writing the program for a video game. For one part of the game she uses the rule (x,y)->(x-3,y+4) to move points on the screen. A) what output does the rule give when the input is (-6,0)? Show your work B)What output does the rule give when the input is (3,-4)? Show your work C) Is the rule a function? Explain why it is or why it is not