The table shows the outputs, y, for different inputs, x: Input
(x)3 7 11 15

Output
(y) 4 6 8 10

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) = 5x − 21. Which relation has a greater value when x = 11?

Part C: Using the relation in Part B, what is the value of x if f(x) = 99?

plz help i’ll give 25 points