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Sorry, it's me, same person all the time. answered to wrong location accidentally..  So because I would rationalize that if something has a weight of 1 unit + half of the devices unit. I should first calculate the total mass, divide it by two, and add the division to the total mass?

After you get the points displayed correctly you can tell me

1)  What is the length of your rectangle (that is the long side)      L=?

2) what is the breadth of your rectangle (that is the short side)     b=? 

The area was   90 units squared, that was in the question.

3) SO what do you think that the formula for the area of a rectangle might be?

Ok, Anyway, you can count it in pounds. like if something is 1 pound and one half of it in total weight, would the answer be 1,5 or 2, or something else?

What about the brackets ?

You can edit your last answer     

Maybe it is easier to sync if we use "units". not weight units.. to make it clearer to provide.

Yep 10 rows (including the one you already have.

So what are the co-ordinates at the bottom ?

No, look again.  How many rows do you need?

Also, your points MUST have brackets around them.   I mean the the 2 numbers must have brackets around them.

That was shown to me as a problem, and most are getting 2kg answer, which is wrong by me, because they think half of the 2kg is 1kg which in irrelevant and weird. THE whole question was presented like "Mechanical device weights 1kg + half of it's weight. My sense says it is fast thought 1,5kg, but maybe y=1 and x is the total weight. SO, x = 1+ (y/2), after which the original weight would be in my opinion 1,5, what i do wrong. this should be easy

ok you have answered my first question correctly, now answer the second one.

ok you do not acrually need a formula because area is a measurement of squares.

So 1 square unit is a square that has sides  1 unit by 1 unit .

Questions for Nicholas

1)  Here is a pic, I want you to tell me how many square units this rectangle that I colour in is.

AND

2)  If I put lots of rectangles like this going down the graph, how many will I need to make 90 square units.