appendix c -...

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1.  Imagine you are at a gas station filling your tank with gas. The function  C ( g represents the cost  C  of filling up the gas tank with  g  gallons. Given the equation  C(g)=3.03g  a. What does the number 3.03 represent? 3.03 represents the price per gallon. b. Find  C (2).     C(2) =6.06 c. Find  C (9).    C(9)=27.27 d. For the average motorist, name one value for  g  that would be inappropriate for  this function's purpose. Explain why you chose that number.  Negative numbers are not appropriate – you cannot have negative gallons of gas. Also,  very large numbers are not appropriate --- the gas tank on most vehicles can hold  anywhere between 15 and 100 gallons. So choosing  g= 1000 , say, would not make  much sense e. If you were to graph  C ( g ), what would be an appropriate domain and range?  Explain your reasoning.  An appropriate domain would be (0, 100) – see the discussion above.  An appropriate range would be (0, 303) – because every element in the range is 
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This note was uploaded on 05/22/2011 for the course CRJ 210 taught by Professor Smith during the Spring '10 term at University of Phoenix.

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appendix c -...

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