General: Dog-Years The usual estimate that each human-year corresponds to 7 dog- years i...

General: Dog-Years The usual estimate that each human-year corresponds to 7 dog- years is not very accurate for young dogs, since they quickly reach adulthood. Exercises 83 and 84 give more accurate formulas for converting human-years x into dog-years. For each conversion formula:

a. Find the number of dog-years corresponding to the following amounts of human time: 8 months, 1 year and 4 months, 4 years, 10 years.

b. Graph the function.

The following function expresses dog-years as dog-years per human-year for the first 2 years and then 4 dog-years per human-year for each year thereafter.