(Step#1): Find the Perpendicular bisector of a line segment with endpoints
(Step#2): Find a Point on the perpendicular bisector
(Which is the midpoint of a given line segment)
Using the midpoint Formula which is:
(X3, Y3) = (X1 +X22, Y1 + Y22)
I Hope this helps you!!!
Answer:
<h2><em><u>-9</u></em></h2>
Step-by-step explanation:

<em><u>By</u></em><em><u> </u></em><em><u>putting</u></em><em><u> </u></em><em><u>the</u></em><em><u> </u></em><em><u>values</u></em><em><u> </u></em><em><u>of</u></em><em><u> </u></em><em><u>a</u></em><em><u> </u></em><em><u>=</u></em><em><u> </u></em><em><u>-4</u></em><em><u> </u></em><em><u>,</u></em><em><u> </u></em><em><u>b</u></em><em><u> </u></em><em><u>=</u></em><em><u> </u></em><em><u>9</u></em><em><u>,</u></em>



= -(9)
= <em><u>-9 (Ans)</u></em>
Answer:
Coordinates system is a method for <em><u>plotting</u></em> coordinates on a plane or flat surface.
The green is y and the pink is x.
15 different meals because you can do 5 times 3 and get 15 meals.