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January 28, 2015

January 28, 2015

Posted by **Sydney** on Wednesday, September 15, 2010 at 4:32pm.

a) Find C(2) 3.5 x 2 = 7

b) Find C(5) 7/5 = 1.4

would this be correct ?

- Math/116 -
**Cassy**, Wednesday, September 15, 2010 at 4:36pma is correct b is 3.5(5)=17.5

- Math/116 -
**Sydney**, Wednesday, September 15, 2010 at 4:40pmThank you can you explain to me how you got the 17.5 answer please

- Math/116 -
**Cassy**, Wednesday, September 15, 2010 at 4:45pm3.5 multiplied by 5.

- Math/116 -
**Sydney**, Wednesday, September 15, 2010 at 4:48pm2. Suppose that the linear equation y = 0.3x + 0.9 represents an estimate of the average cost of gas for year x starting in 2002. The year 2002 would be represented by x = 1, for example, as it is the first year in the study. Similarly, 2008 would be year 7, or x = 7.

a) What year would be represented by x = 2? (2 pts.)2002

b) How much did it cost per gallon of gasoline in the year represented by x=2? 2000 divided by 2 = .99

c) What x-value represents the year 2011? this one I am not sure

d) Assuming this growth trend continues, what will the price of gasoline be in the year 2011? How did you arrive at your answer?

- Math/116 -
**Cassy**, Wednesday, September 15, 2010 at 4:50pmsorry im not sure.

- Math/116 -
**Sydney**, Wednesday, September 15, 2010 at 5:14pmThank you for your help

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