Anya G.

I need help with domain

Assume a car uses gas at a constant rate. After driving  25 miles since a full tank of gas was purchased, there was 14 gallons of gas left; after driving  65 miles since a full tank of gas was purchased, there was  10.8 gallons of gas left.

Use a function to model the amount of gas in the tank (in gallons). Let the independent variable be the number of miles driven since a full tank of gas was purchased. Find this function’s domain and range in this context.

My teacher is no help I genuinely do not understand