Question

Select all tables that represent a proportional relationship between the number of pizzas ordered and the total cost.
A.
Number of Pizzas Ordered Total Cost
1 $10.00
2 $20.00
3 $28.00
4 $36.00
B.
Number of Pizzas Ordered Total Cost
1 $8.00
2 $16.00
3 $24.00
4 $32.00
C.
Number of Pizzas Ordered Total Cost
2 $12.00
4 $24.00
6 $36.00
8 $48.00
D.
Number of Pizzas Ordered Total Cost
3 $9.00
5 $25.00
7 $49.00
9 $81.00

Answer 1

B and C.

B has a constant cost-per-pizza of $8 (8/1 = 16/2 = 24/3 = 32/4).
C has a constant cost-per-pizza of $6 (12/2 = 24/4 = 36/6 = 48/8).