Excel 07 Scatter Graph Shoesize Height Help With Excel 07 Formula?

Help with excel 07 formula? - excel 07 scatter graph shoesize height

I have an equation of a cloud of points which I have just referred to. How do I get the equation of this information?
Axis y = 0, .200, 297, 299, 646, 392, 392 (optical density)
Axis x = 0, 2, 4, 6, 8, 10 (hours)