The accompanying table shows the round-trip fare for flights from one city to 10 other cities on major airlines. These were the lowest prices found online in early 2010. The airlines varied, but the travel dates were all the same. How much would it cost, on average, to fly 500 miles? To answer this question, perform a complete regression analysis, including a scatterplot with a regression line.

Draw a scatter plot.

Is the linear model appropriate?

Determine the regression line for the round-trip flight data.

Add the regression line onto the scatterplot

Interpret the slope and the intercept in the context of the problem

Using the regression line, how much would it cost, on average, to fly 500 miles?

City	Cost	Miles
6	96	427
1	184	202
2	184	968
4	272	1944
5	319	2982
7	320	1038
10	334	1140
3	397	3100
9	404	1753
8	447	2978