Sarah has 13 gallons of gas in her car at the beginning of a trip. Every hour Sarah drives, she uses 2.5 gallons of gas. Answer the questions below regarding the relationship between the gallons of gas remaining in the tank and the total hours driven.
14Answer:
function is C(x) = 13 - 2.5xStep-by-step explanation:
The independent variable, x, represents the number of hours
and the dependent variable is the gallons of gas remaining because the
gallons of gas remaining depends on the number of hours
A function relating these variables is C(x) = 13 - 2.5x
So, C(3) = 13 - 2.5x3 = 5.5
Meaning 3 hours later, the remaining gas is 5.5
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