Question

the graph below is used by company 2 to show the average monthly electric cost based on the electricity percent. average monthly electric cost how could the graph be redrawn so that the difference in monthly electric cost does not appear as great? the scale on the y - axis could be changed to 0–150. the scale on the y - axis could be changed to 100–120. the interval on the y - axis could be changed to count by 1s. the interval on the y - axis could be changed to count by 20s.

Explanation:

Step1: Analyze y - axis scale effect

To make the difference in bar heights (costs) appear smaller, we need to adjust the y - axis scale. A larger range on the y - axis (starting from a lower minimum or having a wider range) will compress the visual difference between the bars. If we change the y - axis scale to 0 - 150, the bars will seem relatively closer in height because the total vertical space is larger, making the differences in their heights less prominent.

• For the option "The scale on the y - axis could be changed to 100 - 120", this range is too narrow and will likely exaggerate the differences.
• Changing the interval to count by 1s will make the axis too detailed and won't reduce the visual difference in bar heights.
• Changing the interval to count by 20s doesn't address the overall scale to compress the differences as effectively as changing the scale to 0 - 150.

Step2: Confirm the correct option

The option "The scale on the y - axis could be changed to 0 - 150" is correct as it expands the y - axis range, making the differences in the bar heights (representing costs) appear less great visually.

Answer:

A. The scale on the y - axis could be changed to 0–150.