For the function involving the variables listed in ordered pair form, use your intuition or additional research, if necessary, to complete parts (a) through (c).

(current price of gasoline, number of tourists in a national park)

a. Describe an appropriate domain and range for the function.

b. Make a rough sketch of a graph of the function .

c. Briefly discuss the validity of the graph as a model of the true function.

a. Choose the appropriate domain for the function below.

A. The domain is all realistic gasoline prices or $0.25 per gallon to $1.50 per gallon

B. The domain is the numbers of tourists visiting the park or 2500 people to 15,000 people

C. The domain is the numbers of tourists visiting the park or 0 people to 1 million people

D. The domain is all realistic gasoline prices of $2 per gallon to $4 per gallon.