A furniture store recently started tracking the number of bedroom sets it sold each month with the number of commercials it aired on TV. The scatter plot shows the data gathered and the line of best fit.

step-by-step explanation:

points a and b are equidistant from the desired line, so the line you find by using them will go through point r.

using points other than a and b will give the desired line only if they are equidistant from r. if they are randomly located, the perpendicular line you create will not necessarily go through point r, hence will not be a solution to the problem.

i don’t see a picture