A wrestler decided to go on a special high-protein diet to gain weight rapidly. He started at 115 pounds and gained 1.5 pounds per week.

Which function can be used to find w, the wrestler’s weight after x weeks on the diet?

A. w = 115x + 1.5
B. w = 1.5x + 115
C. w = 115x
D. w = 1.5x