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In a given country the average price of a gallon of unleaded gasoline in 1997 was $1.58 in 2010 the average price was $3.11 find and interpret the average rate of change in the price of a gallon of gasoline per year?

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Answer:

≈$.12 average price of gallon per year increase

Step-by-step explanation:

Given:

$1.58 in the year 1997

$3.11 in the year 2010

Conclude:

In (2010 -1997=)13 years the prices increased by (3.11-1.58 =)1.53 dollars.

The average rate of change in the price of a gallon of gasoline per year

1.53price per gallon /13 years ≈$.12/year

Interpret the result:

Each year since 1997, an increase of about $.12 will result in a price of about $3.11 in the year 2010.

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