Answer:
y = 18x is the required equation.
Step-by-step explanation:
The car traveled = y miles
Gasoline that car used to cover x miles = x gallons
Distance traveled by car is directly proportional to Gasoline used to travel that distance.
that is distance traveled by car = K× Gasoline used
Using unitary method,
Unitary method is used to find the value of a single unit.
Distance traveled by car in one gallon of gas = 18 miles.
Distance traveled by car in x gallon of gas (y) = 18x miles.
Thus, y = 18x is the required equation.
