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.(1 point)
A) C(g) = –2.19g
B) g = 2.19C(g)
C) C(g) = g + 2.19
D) C(g) = 2.19g
D) C(g) = 2.19g
D) C(g) = 2.19g
The correct answer is D) C(g) = 2.19g.
To understand why this is the correct answer, let's break down the information given in the question. It states that the gas station charges $2.19 per gallon of gas. This means that for each gallon purchased, the cost is $2.19.
In function notation, the total cost, denoted as C(g), is a function of the number of gallons purchased, denoted as g. So, C(g) represents the cost of purchasing g gallons of gas.
Since we know that the cost per gallon is $2.19, we can express the relationship between the total cost and the number of gallons purchased using multiplication. Multiplying the cost per gallon (2.19) by the number of gallons (g) will give us the total cost.
Therefore, the correct function notation to describe this relationship is C(g) = 2.19g, where C(g) represents the total cost and 2.19g represents the cost per gallon multiplied by the number of gallons purchased.