Three multiplied by the sum of 4 and a number is the same as 18 more than the number. find the number. if n is " the number," which equation could be used to solve for the number? 3n+4=n+18 4 (3+n)=n+18 3 (4+n)=n+18

picture below

step-by-step explanation:

once you graph it hit 2nd (the blue button) and graph

that takes you to a table of coordinates

on the left is x coordinates and on the right is y coordinates and an empty box

(you may have to scroll up/down in order to get ( x, 0)

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.