REVIEW: Candace purchased 6 gallons of gas for $13.56. What is the constant of proportionality that relates the cost in dollars, y, to the number of gallons, x? Remember, the constant of proportionality is k=y/x. (1 point)
A. $1.23 per gallon
B. $2.26 per gallon
C. $0.44 per gallon
D. $3.04 per gallon
To find the constant of proportionality that relates the cost in dollars to the number of gallons, we need to divide the cost by the number of gallons.
Constant of proportionality = Cost in dollars / Number of gallons
The cost in dollars is $13.56 and the number of gallons is 6. So,
Constant of proportionality = $13.56 / 6
= $2.26 per gallon
Therefore, the correct answer is B. $2.26 per gallon.