SOLUTION: How would you form the equation in the following case? How would you form a function? Let us say you are asked to pay $10 upfront every week. If you do so, you can get gasoline

Question 433548: How would you form the equation in the following case? How would you form a function?

Let us say you are asked to pay $10 upfront every week. If you do so, you can get gasoline at the rate of $1.50 per gallon. Now you want to form an equation to see if this is a better deal for you instead of paying $2.34 per gallon. What parameters do you need to construct an equation for this?

Of course, if you just assume that your truck will consume a set amount of fuel every week, you can do it without an equation. Let us assume your truck consumes x gallons
Answer by jorel1380(3719) (Show Source): You can put this solution on YOUR website!
Given your truck consumes x gallons, to get the best deal:
10+1.50x<2.34x
10<2.34x-1.50x
10<.84x
11.90 After 11.90 gallons, you're better off paying the $10 up front,and getting your gas at $1.50 a gallon.

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