To find the constant of proportionality, we need to divide the total cost by the number of books purchased.
Constant of proportionality, k = Total cost / Number of books purchased
Total cost = $20.46
Number of books purchased = 6
k = $20.46 / 6
k ≈ $3.41
So, the constant of proportionality that relates the cost to the number of books purchased is approximately $3.41.
Steven bought 6 books for $20.46. What is the constant of proportionality that relates the cost, y, to the number of books purchased, x?
1 answer