Question

Which relation represents a proportional function?

(O) The cost of a pizza from Marco’s Pizza is $10 plus $4.50 delivery fee.


(A) The cost of a cheese pizza from Pizza Hut is $8 plus $1.50 for each topping.


(E) The cost of a pizza from Domino’s is $13, including delivery.


(I) The cost of a pizza is $12 from Little Caesar’s with a coupon for $2 off.

Answer 1

The answer is A, this is because as the amount of toppings increases so does the price increase proportionally.