The average cost of a compact car at a certain dealership over the last 10 years has ranged from $14,000 to $18,500. Suppose you were going to plot these points on a coordinate grid. (a) What is a good scale to use for the y-axis? Explain your reasoning. (b)What is a good interval to use for the y-axis? Explain your reasoning. 50POINTS PLEASE SOMEONE HELP