Question

I need help with this one. Question is: you are painting the walls in your bedroom and have determined that since you have to paint two coats, one gallon if paint will cover 200 square feet. Which input/output (I/O) model correctly displays the domain and range of this situation where f, the number of square feet that can be painted is a function of g, the number of gallons of paint purchased?
so which model is it?

Answer 1

Model 1 is the correct one