Examine the rise in gasoline prices from 2006 to 2009. The average price of regular unleaded gasoline in January 2006 was $2.31 and in January 2009 the average price of regular unleaded gasoline was $3.42.

a. Use the slope formula to find the rate of change of the gasoline prices between 2006 and 2009. Explain

Question

Examine the rise in gasoline prices from 2006 to 2009. The average price of regular unleaded gasoline in January 2006 was $2.31 and in January 2009 the average price of regular unleaded gasoline was $3.42. 
 
a.    Use the slope formula to find the rate of change of the gasoline prices between 2006 and 2009. Explain

anonymous · Answer

The way I figure it is this, but I'm not sure if I'm right:

M=y2 – y1 / x2-x1

3.42 - 2.31 / 2009 – 2006 = 1.11 / 3 = .37