Pampered Pets The pet industry is big business in the United States. The amount spen...

Pampered Pets The pet industry is big business in the United States. The amount spent yearly on pets continues to increase.

a. Based on a scatter plot of the data in the table, why is a linear model appropriate?

b. Align the data so that 1994 is year 0. Write a linear model for the amount spent each year on American pets.

c. Use the model to estimate the amount that will be spent on pets in 2013. What assumption(s) must be made for this to be considered a valid estimate?