1. The problem statement, all variables and given/known data I have a set of data by HPLC that will only fit in an exponential plot in excel. If I was to use a linear graph I would use y=mx+c but the data will NOT fit into a linear plot. 2. Relevant equations The R2 for the exponential graph = 0.9973 y=0.0044e(0.0017x) where (0.0017x) is superscript. 3. The attempt at a solution I have a value for my recovery that I can read off the graph but don't know how to convert this to ug (I can do this if the graph is linear). I have plotted µg vs peak response. Thanks!