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
PLS HELP
The correct answer is D.
Function notation is typically written as "f(x)" where "f" is the name of the function and "x" is the input or variable. In this case, the function "C" represents the total cost, and "g" represents the number of gallons.
Since the gas station is charging $2.19 per gallon, the total cost C(g) can be calculated by multiplying the price per gallon (2.19) by the number of gallons purchased (g):
C(g) = 2.19g
Therefore, the answer is D, C(g) = 2.19g.
The correct answer is:
D. C(g) = 2.19g
In function notation, C(g) represents the cost of gas for a given number of gallons, which is directly proportional to the number of gallons purchased, represented by g. The equation C(g) = 2.19g represents this relationship, where 2.19 is the cost per gallon.
To describe the relationship between the total cost C(g) and the number of gallons purchased g, we need to determine how the two variables are related.
In this case, the gas station charges $2.19 per gallon of gas. This means that the total cost C(g) is equal to the price per gallon multiplied by the number of gallons purchased.
So, the correct function notation to describe this relationship is:
D. C(g) = 2.19g
In this equation, g represents the number of gallons purchased, and 2.19g represents the total cost of the gas.