SOLUTION: 2. Examine the rise in gasoline prices from 1997 to 2006. The price of regular unleaded gasoline in January 1997 was $1.26 and in January 2006 the price of regular unleaded gasolin

Algebra ->  Linear-equations -> SOLUTION: 2. Examine the rise in gasoline prices from 1997 to 2006. The price of regular unleaded gasoline in January 1997 was $1.26 and in January 2006 the price of regular unleaded gasolin      Log On


   

Question 389678: 2. Examine the rise in gasoline prices from 1997 to 2006. The price of regular unleaded gasoline in January 1997 was $1.26 and in January 2006 the price of regular unleaded gasoline was $2.31 (Bureau of Labor Statistics, 2006). Use the coordinates (1997, 1.26) and (2006, 2.31) to find the slope (or rate of change) between the two points. Write your answer as a fraction or integer and describe how you arrived at your answer.
Answer by richard1234(7193) About Me  (Show Source):
You can put this solution on YOUR website!
The slope m is m+=+DELTA%28y%29%2FDELTA%28x%29 (change in y over change in x). Substituting the numbers in,

m+=+%282.31+-+1.26%29%2F%282006+-+1997%29+=+1.05%2F9+=+7%2F60

By the way, I have changed the topic of this question from "linear algebra" to "linear equations, graphs, slope." Linear algebra is a fairly abstract subject in mathematics :)