Question

Brody’s car holds a maximum of 30 gallons of gas. The function f(g) = 1.95g models the relationship between the total cost of gas, f(g), and the number of gallons of gas purchased, g. What is the most appropriate domain of the function?

A) g > 0
B) g > 15
C) g > 30
D) g > 60

Answer 1

The most appropriate domain of the function is g > 0.

Step-by-step explanation:

The most appropriate domain of the function is g > 0.

The function f(g) = 1.95g represents the relationship between the total cost of gas and the number of gallons of gas purchased. Since the number of gallons of gas cannot be negative, the domain of the function is g > 0.

For example, if Brody purchases 10 gallons of gas, the total cost would be 1.95 * 10 = 19.50 dollars.