Question

Please help :)

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?

Answer 1

part c answer is 31 2x+13=75 minus 13 from 75 2×=62 divide 2 on both side 62÷2=31