A phone company charges for service according to the formula: $\displaystyle {C}{\left({n}\right)}={17}+{0.04}{n}$, where $\displaystyle {n}$ is the number of minutes talked, and $\displaystyle {C}{\left({n}\right)}$ is the monthly charge, in dollars.

The rate of change in this equation is: Select an answer Minutes per Dollar Dollars per Minute Minutes Dollars

The initial value in this equation is: Select an answer Dollars per Minute Dollars Minutes per Dollar Minutes