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, we divide the cost by the number of gallons.
Therefore, the constant of proportionality is $\dfrac{13.56}{6} = 2.26$.
Answer: \boxed{\text{(B)}\ 2.26}.