Hello, i could really use some guidance, taking a discreet model class, we have to do projects, first project we were suppose to take a word problem and create a discreet model, I did that, for project 2 we were suppose to make said model continuous (did that) AND come up with a 2nd equation model that relates to the 1st equation, I have attached the original problem, the discreet model that I did and what each constant/variable represents, what could I do for a 2nd model that relates to the first equation? The 1st model has to do with getting a mortgage with a down payment and paying it off monthly after 360 months (30 years) at a %. Please help