At a gas station, a gallon of gasoline costs $3.50. The relationship between the dollar cost of gasoline and the gallons
purchased can be described with a function.
a Identify the input variable and the output variable in this function.
b. Describe the function with a sentence of the form is a function of_."
c Identify an input-output pair of the function and explain its meaning in this situation.
A. $3.50 is input, Gallon of Gasoline is output B. The form is a function of y=3.50x C. $7.00-2 Gallons. This shows that for 7 dollars you can get 2 gallons of gasoline.
