Which function could represent the data in the table below?

Question

x-  -5   0   2   5

f(x) -2  3  5   8

 

 

A) f(x)=-2

B) f(x)= x-3

C) f(x)=x+3

D) f(x)=2x+1

Answer 1

x:       -5   0   2   5

Y:       -2   3   5   8

         ----------------

x-y      -3  -3  -3 -3

 

For each case   x-y = -3

Rearranged      y = x+3

 

C)  f(x) = x+3