Answer:
This answer is a function because there are no repeating x values. It is okay if there are repeating y values, the x values are the problem. This one has no repeats though so it is a function!
Step-by-step explanation:
Answer: 6
Step-by-step explanation: you multiply x4 and -3 because the parenthesis and then you add.
B= -42 C= -38
So the difference going up to positive is 4 and the difference going down in negative is -4.