Originally Posted by

**StudentD**
So I am trying to plot points in a rectangle. I am given an X and Y value that is 0,0 if its in the centre of the rectangle. if its Y position is -750 its at the top and 750 if its at the bottom.

I am trying to plot it onto a chart but a calculation is needed. On my chart the Y centre is also 0, but the top is position 0.967 and bottom is -0.967

So in essence

Y top = -750 and 0.967

y bottom = 750 and -0.967

y middle = 0 and 0

What would be the calculation for instance if I got given a y value of -400

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