To determine which candy bar is the cheapest cost per bar, we'll first analyze the cost for Candy Bar 1 based on the given table and then compare it with the cost for Candy Bar 2 based on the equation provided.
Candy Bar 1
From the table, the cost for different quantities of Candy Bar 1 is:
- 1 candy bar: $0.80
- 2 candy bars: $1.60
- 3 candy bars: $2.40
- 4 candy bars: $3.20
- 5 candy bars: $4.00
Now, let's calculate the cost per bar for Candy Bar 1:
- For 1 bar: \( \frac{0.80}{1} = 0.80 \)
- For 2 bars: \( \frac{1.60}{2} = 0.80 \)
- For 3 bars: \( \frac{2.40}{3} = 0.80 \)
- For 4 bars: \( \frac{3.20}{4} = 0.80 \)
- For 5 bars: \( \frac{4.00}{5} = 0.80 \)
The cost per bar for Candy Bar 1 is consistently $0.80.
Candy Bar 2
The relationship for Candy Bar 2 is given by the equation \( y = 2x \), where \( x \) is the quantity of candy bars and \( y \) is the total cost.
Now let's calculate the cost for different quantities of Candy Bar 2:
- For 1 candy bar: \( y = 2(1) = 2.00 \)
- For 2 candy bars: \( y = 2(2) = 4.00 \)
- For 3 candy bars: \( y = 2(3) = 6.00 \)
- For 4 candy bars: \( y = 2(4) = 8.00 \)
- For 5 candy bars: \( y = 2(5) = 10.00 \)
Now let's calculate the cost per bar for Candy Bar 2:
- For 1 bar: \( \frac{2.00}{1} = 2.00 \)
- For 2 bars: \( \frac{4.00}{2} = 2.00 \)
- For 3 bars: \( \frac{6.00}{3} = 2.00 \)
- For 4 bars: \( \frac{8.00}{4} = 2.00 \)
- For 5 bars: \( \frac{10.00}{5} = 2.00 \)
The cost per bar for Candy Bar 2 is consistently $2.00.
Conclusion
After comparing the costs per bar:
- Candy Bar 1 costs $0.80 per bar.
- Candy Bar 2 costs $2.00 per bar.
Candy Bar 1 is the cheapest cost per bar.