Question

he gas tank in Tony's car holds 15 gallons, & the car can travel 25 miles for each gallon of gas. When Tony begins with a full tank of gas, the function f(x)= -1/25x+15 gives the amount of gas f(x) that will be left in the tank after traveling x miles. Graph function & give its domain & range.

Answer 1

f(x)= -1/25x+15. 15 gallons × 25 Miles= 375 miles
f(x)= -1/25(375)+15
f(x)= 0