customizing trendlines

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Use Data, What-If Analysis, Goal Seek to find the correct input cell value to reach a desired result

Oaktree

MrExcel MVP
Joined
Jun 20, 2002
Messages
8,010
Office Version
  1. 365
Instead of predicting Y=SQRT(X), can't you flip your axes and predict NewY(oldX)=NewX(oldY)^2? That way, you can just use power 2, which shouldn't have a problem.
 

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