PLZZZ HELPP ASAP

The table shows the outputs of ,y, for different inputs X:
input( X) is 1 2 3 4
output (Y) is 5 5 7 9

Part A: do the data in this table represent a function? justify your answer.

Part B compare the data in the table with the relation f(x) = 2x - 8. which relation has a greater value X = 4?

Part C using the relation in Part B, what is the value of X if f(x) = 34​