Comparing Cell Phone Plans
Most cell phone carriers offer package deals in which they charge a set monthly fee and provide for a free number of anytime minutes every month.
Once the anytime minutes are used up, then they charge a set rate for overage minutes for this activity assume you typically will use 575 minutes per month.
1. Research the price of cell phone plans for two different carriers. for each carrier get prices for two different plans that are close to this assumed usage
2.Create a relationship for each plan (an equation) where f(x) represents the monthly phone bill and where x represents the minutes used beyond the free anytime minutes.remember to include the standard monthly fee in your function. Note: gave each plan a different functional name,f (x), g(x), h(x) and j(x), to distinguish them from each other.
3. graph each relationship. the x axis will represent total minutes used and the y-axis the total monthly cost. note the cost will be horizontal line until you go beyond the free minutes.