I need help explaining and answering a coordinates question to an 11 year old

Question

I am helping the boy next door who is 11 with his homework as I do with all the children that live round me, English isn't his first language so sometimes he doesn't always understand what the teacher has explained and feels stupid to keep asking.  Usually I have no problems with maths but it's that long since I last worked with coordinates I urgently need assistance on the answer to the following question and the best way I can explain it to him.  Please help as this homework has to be in tomorrow morning.

 

The question is on a Y,X axis (with approximatly one third is over the Y axis and roughly the same with the X axis, in regards to the outer rectangle) there are 3 concentric rectangles on a coordinate grid.  What are the coordinates for Point A and Point B?  

 

There is no scale or measurements for any of the rectangles.  In the top left corner ( as I look down at the page) of the outer rectangle which is the largest of the 3 , are the coordinates (-4,7)and the bottom right corner is (6,-3).  Point A is the top left corner of the middle rectangle and Point B is the bottom right corner of the inner rectangle with the coordinates (2,3) in the top right corner of the same rectangle.

Please help thank you .

Answer 1

Not sure how much this will help but you always want to list coordinates and describe them as the x, y axes since the x always comes first in the pair of coordinates.

 

I'm having trouble picturing the rectangles as you describe but if you have a rectangle, the two points on  'top' will have the same y-coordinate if the line of the rectangle goes purely east-west, so to speak.

The same is true with the bottom two points.

 

Similarly, the two points on the left side of the rectangle will have the same x-coordinate if the line making it up goes truly 'north-south' and the same is true for the right side.

 

An example:

 

(1, 5)                    (4, 5)

.-------------------------.

|                              |

|                              |

.-------------------------.

(1, 2)                     (4, 2)

 

Hopefully you can use the way the coordinates work out like that to get the information you need for the missing points?