Which of the following best describes the expression 3x + 2y + 8z?

the product of three sums; there are three terms
the sum of three products; there are three terms
the product of three sums; there are six terms
the sum of three products; there are six terms

you have to put the graph on here with the question

step-by-step explanation:

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.