Find the number of possible combinations choose one of three books and one of eight cds to bring on a bus trip

answer: all the values are within because it has a pattern that repeats from -6 to 4.

good luck!

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.