The table shows the outputs y for different inputs x:
input
(x)
5 6 7 8
output
(y)
2 5 8 11
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 + 13. which relation has a greater value when x = 7?
part c: using the relation in part b, what is the value of x if f(x) = 75?