A gas station charges $2.19 per gallon of gas. Use function notation to describe the relationship between the total cost C(g) and the number of gallons purchased g.
A. C(g)=-2.19g
B. g=2.19C(g)
C. C(g)=g+2.19
D. C(g)=2.19g
C?
Thanks
D is indeed correct.
nope. C is what you get if there's a flat fee of 2.19 and each gallon costs 1 more.
I didn't know if it was C or D. Is the answer D?
Thank you for your help Steve. It is greatly appreciated.
No problem, and congratulations on your choice! However, the correct answer is actually D. C(g) = 2.19g. This equation represents the relationship between the total cost C(g) and the number of gallons purchased g. Each gallon costs $2.19, so to find the total cost, you simply multiply the number of gallons by the cost per gallon. Keep up the good work!
To describe the relationship between the total cost C(g) and the number of gallons purchased g, we need to consider how the cost is determined. In this case, the gas station charges $2.19 per gallon of gas.
To find the total cost, you multiply the cost per gallon ($2.19) by the number of gallons purchased (g). Therefore, the correct function notation to describe this relationship is:
C(g) = 2.19g.
This means that the total cost C is equal to 2.19 multiplied by the number of gallons g.
So, the correct answer is D. C(g) = 2.19g.