Use the table to answer the question.

Question

($) Cost of Candy Bar A
Quantity ($) Cost
1 1.25
2 2.50
3 3.75
4 5.00
5 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.

(1 point)

Answer 1

To determine which candy bar has a cheaper cost per bar, we need to calculate the cost per bar for both Candy Bar A and Candy Bar B.

For Candy Bar A:

• The cost per bar is calculated by dividing the cost by the quantity.
• For 1 bar: \( \frac{1.25}{1} = 1.25 \)
• For 2 bars: \( \frac{2.50}{2} = 1.25 \)
• For 3 bars: \( \frac{3.75}{3} = 1.25 \)
• For 4 bars: \( \frac{5.00}{4} = 1.25 \)
• For 5 bars: \( \frac{6.25}{5} = 1.25 \)

So, for Candy Bar A, the cost per bar is consistently $1.25.

For Candy Bar B:

• The proportional relationship is given by the equation \( y = x \), where \( y \) is the cost and \( x \) is the quantity. Therefore, the cost per bar for Candy Bar B is:
• For any quantity \( x \): \( \frac{y}{x} = \frac{x}{x} = 1 \)

The cost per bar for Candy Bar B is consistently $1.

Comparing the costs:

• Candy Bar A: $1.25 per bar
• Candy Bar B: $1 per bar

Hence, Candy Bar B is the cheaper option. The answer is 2 for Candy Bar B.