Final answer:
To make the 'Cable Company Rates' graph less misleading, changing the vertical scale to increments of $1 would provide a clearer and more accurate representation of costs over time.
Step-by-step explanation:
To make the graph titled 'Cable Company Rates' less misleading for comparing the costs of AAA cable to its competitor, it is important to consider how the scales on the axes impact the viewer's perception of the information presented. Changing the vertical scale to increments of $1 instead of increments of $5 (option 3) would provide a more precise and detailed view of the costs over time, making it easier to compare the two companies' rates accurately.
Using smaller increments on the vertical axis would represent the cost differences more clearly without exaggerating the lines representing the costs. The viewer would be able to see the nuances of how costs from both companies accumulate over time. This would correct the issue of the average cost line appearing almost flat, which could mislead viewers into underestimating the true cost differences between the two companies over time.
Therefore, smaller increments on the vertical scale provide a more truthful and clear comparison, and no other changes to the graph are immediately necessary to improve its accuracy in conveying the cost information of the company.