Question

Earl mows lawns one weekend. He earns $12 for each lawn that he mows. He spends $40 on gas and other supplies.
What function equation represents Earl's profit from mowing x lawns?
 


A. f(x)=40x−12

B. f(x)=40x+12

C. f(x)=12x+40

D. f(x)=12x−40

Answer 1

Answer is D) f(x) = 12x-40

Answer 2

D f(x)=12x-40 because he has to subtract the price of fuel from his profit