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Functions and their graphs

Functions and their graphs - Axia College Material Appendix...

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Axia College Material Appendix E Fueling Up Motorists often complain about rising gas prices. Some motorists purchase fuel efficient vehicles and participate in trip reduction plans, such as carpooling and using alternative transportation. Other drivers try to drive only when necessary. Application Practice Answer the following questions. Use Equation Editor to write mathematical expressions and equations. First, save this file to your hard drive by selecting Save As from the File menu. Click the white space below each question to maintain proper formatting. 1. Suppose you are at the 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: ) ( 03 . 3 ) ( g g C = a) What does the number 3.03 represent? The 3.03 represents the price in dollars that it costs per gallon of gas. b) Find C (2) Plug in 2 for g: C(2) = 3.03(2) = \$6.06 c) Find C (9) Plug in 9 for g: C(9) = 3.03(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 the number you did.

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Functions and their graphs - Axia College Material Appendix...

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