The table below show the amount of water that is in a bathtub that is being filled (1,12) (2,17) (3, 22) (4,27).

Which of the following function could model the amount of gallon of water, f(x) that the bathtub will contain after x minute of being filled?

1. f(x)=5x+12

2.f(x)=7x+5

3.f(x)=5x+7

4.f(x)=12x+5