Question

The table shows the outputs, y, for different inputs, x:

Answer 1

A Yes  as the x values are all different

B f(x) = 5x + 14

when x = 2 , f(x) = 5(2) + 14 = 24
 x = 5,  f(x) = 39, 
Each value of f(x) is greater than corresponding ones in the function in A.
when x = 9  f(x) = 59  which is greater than for first function ( =12)

First function is a decreasing  while f(x) is increasing

C f(x) = 64 = 5x + 14

5x  = 64 - 14 = 50

x = 10