VBA: Copy equation from graph to cell; update all if numbers in Y-coordinate changes

Hi,
I need help to use VBA to copy the equation from the graph to a cell E30, and format the equation so that it can be calculated pending on X values. Next if the numbers in Y-corrdinate changes,
I would like the graphic, labels and equation update and paste the new equation to a different cell E45, and refomat the equation. the first equation in E30 will be kept. In some case the numbers for X-coordinate changes or both X and Y coordinates may have different numbers to generate different curves and equation. But I would like always add the new equation to a new cell (E31)below the previous one.

Can your experts advise? I am a dump bell in VBA.


thanks.

Attached Files

• Graphi.xlsx‎ (22.2 KB)