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?
Responses
A$0.44
$0.44
B$2.26
$2.26
C$1.23
$1.23
D$3.04
To find the constant of proportionality, divide the cost by the number of gallons.
Constant of proportionality = Cost / Number of gallons
In this case, Candace purchased 6 gallons of gas for $13.56.
So, the constant of proportionality is:
Constant of proportionality = $13.56 / 6 gallons
Constant of proportionality = $2.26 per gallon
Therefore, the correct answer is B$2.26.