SOLUTION: 1. Suppose you are at the gas station filling your tank with gas. The function C(g) represents the cost C of filling up the gas tank with g gallons. Given the equation: c(g)=3.12(

Algebra ->  Linear-equations -> SOLUTION: 1. Suppose you are at the gas station filling your tank with gas. The function C(g) represents the cost C of filling up the gas tank with g gallons. Given the equation: c(g)=3.12(      Log On


   

Question 389686: 1. Suppose you are at the gas station filling your tank with gas. The function C(g) represents the cost C of filling up the gas tank with g gallons. Given the equation: c(g)=3.12(g)
a) What does the number 3.12 represent?
b) Find C(2)
c) Find C(9)
d) If you were to graph C(g), what values would make up an appropriate domain? Range? Explain your reasoning and remember to include ALL appropriate values.

Answer by richard1234(7193) About Me  (Show Source):
You can put this solution on YOUR website!
a: 3.12 is the price per gallon.

For b,c just substitute the given values into the equation C(g) = 3.12g

d: The domain and range are both on the nonnegative real numbers, since you can only buy a positive amount of gas (or zero).