Michael is coming home from a vacation. His gas tank has 1.5 gallons remaining, so he stops at a gas station 120 miles from his home. His gas tank holds up to 20 gallons of gas and his vehicle can travel 24 miles per gallon.
The gas station charges $2.10 per gallon of gas.
While filling his gas tank, Michael graphs a function relating the price he pays, p, to the amount of gas he purchases, 9
. Michael must purchase at least enough gas to get home.