Levi's car used 8 gallons of gas to drive 280 miles. At what rate does his car use gas in gallons per mile? Express your answer
1 answer:
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Answer:
2
Step-by-step explanation:
the rate of change is measured as
in the closed interval [ a, b ]
here [a, b ] = [- 4, 1 ]
f(b) = f(1) = 2 + 4 = 6
f(a) = f(- 4) = - 8 + 4 = - 4
average rate of change = =
= 2