Question

A. Is this mapping diagram a function? Why or why not?

Answer 1

Answer:

40--C   A ---is not[figure it out in your own words,your teacher might suspect something] and B---times 40

Step-by-step explanation:

b--40+40=80   80+40=120 and 120+40=160                A=subtract 40 from all the other answers such as 40-160=120       40-120=80  and 40-80=40