Final answer:
The constant of proportionality between the chocolate chips and cookie dough in the bakery's recipe is 0.5 tablespoons per cup.
Step-by-step explanation:
The constant of proportionality is a value that defines the ratio between two proportional quantities. To find the constant of proportionality for the bakery's chocolate chip cookies, we must compare the amount of chocolate chips to the amount of cookie dough. The bakery uses 4 tablespoons of chocolate chips for every 8 cups of cookie dough. To express this as a constant of proportionality, we divide the amount of chocolate chips by the amount of cookie dough.
4 tablespoons chocolate chips / 8 cups cookie dough = 0.5 tablespoons per cup
Thus, the constant of proportionality is 0.5 tablespoons per cup of cookie dough, meaning for every cup of cookie dough used, you would use 0.5 tablespoons of chocolate chips.