use the table to answer the question.

($) cost of Candy Bar A
Quantity: 1, 2, 3, 4, 5
($) Cost: 1.25, 2.50, 3.75, 5.00, 6.25
The cost of Candy Bar A is displayed in the table. The proportional relationship between the cost and quantity for Candy Bar B is represented by the equation y = x. Which candy bar is the cheapest cost per bar? Enter 1 for Candy Bar A. Enter 2 for Candy Bar B.

Candy Bar B is the cheapest cost per bar. Enter 2.