There were a total of 156 cars at the car dealership. A salesman sold 65 cars in the month of May. Write and solve an inequality that describes how many
more cars, at most, the salesman has left to sell. Interpret the solution.

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.