## gas prices

Quadratic equations and inequalities, variation equations, function notation, systems of equations, etc.
jonesbetty
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Joined: Mon Nov 07, 2011 10:00 pm
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### gas prices

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)=3.03(g).
a)what does the number 3.03 represent
b) find C(2)
c) find C(9)
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
e) if you were to graph C(g), what would be an appropriate domain and range? Explain your reasoning

maggiemagnet
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Joined: Mon Dec 08, 2008 12:32 am
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### Re: gas prices

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)=3.03(g).
a)what does the number 3.03 represent
What does "g" represent? If you plug in "1" for "g", what does the answer mean?
b) find C(2)
Plug "2" in for "g". Simplify.
c) find C(9)
Plug "9" in for "g". Simplify.
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
If you're not familiar with cars or driving, try asking an adult (like your mom) about gas tanks, etc.
e) if you were to graph C(g), what would be an appropriate domain and range? Explain your reasoning
Where are you having difficulty on this part?

jonesbetty
Posts: 5
Joined: Mon Nov 07, 2011 10:00 pm
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### Re: gas prices

i am 65 years old and very familiar with gas tanks i did not post to to ridiculed i an simply trying to relearn algebra to help my niece to learn and pass her course i cannot afford a tutor for her

stapel_eliz
Posts: 1628
Joined: Mon Dec 08, 2008 4:22 pm
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i[sic] am 65 years old and very familiar with gas tanks[sic] i[sic] did not post to to[sic] ridiculed...
No thoughs or steps were shown for any portion of any of the exercises which were posted under this username. While it is to be regretted if one took umbrage at the help provided, the assumption that help was needed on every portion of the question was arguably reasonable and sensible. Apologies for any confusion.

For better future results, kindly please re-read the "Please review...before posting" thread (including the "Are you seeking help?" discussion at the link) that you reviewed before posting, and then compose future messages in conformance with those guidelines.

Thank you!

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