IMathAS-libretexts

Linear Application
A phone company charges for service according to the formula: $\displaystyle {C}{\left({n}\right)}={28}+{0.05}{n}$ , where $\displaystyle {n}$ is the number of minutes talked, and $\displaystyle {C}{\left({n}\right)}$ is the monthly charge, in dollars.
Interpret the Slope in this situation. The monthly charge will increase at a rate of
Identify the Vertical Intercept: Write your answer as an ordered pair. What does the Vertical Intercept represent in this situation?