Answer:
B correct
Step-by-step explanation:
Try the app Socratic ,you can take a picture and it will solve it for you and show you how they worked it
Functions have one output for every input. So that means one x-coordinate for one y-coordinate. In this case, (3,4) and (3,12) have the same x-coordinate, so it can't be a function.
Answer:
Step-by-step explanation:
7(a + 2b) + x(a + 2b)
(7 + x)(a + 2b)