How do I utilize a regression equation in a calculation

I have a scatter plot visualization on a filtered set of data with a polynomial regression line and equation. The data consists of a set of entries, and a yield value for each of those entries at several differenct locations. I'd like to be able to have a table in spotfire that uses that regression equation to calculate a value at a certain x value. Is there a way to do this? And, is there way to create a table or calculated column that would calculate the value for each individual entry that I could export?

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