Give answers please!

9.) -3

10.) -4

11.) -5

12.) -2

Step-by-step explanation:

1.) You need to plug in a number from the table into x on the equation

2.) Once you plug in the number divide that number by 3

3.) Once you divide it subtract by 3 from the number you got

4.) Then you get the solution and plug it into the table

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.