I have two graphs in excel. One graph has the values (1,3), (3,5), (5, 9), (7, 13) etc. The second graph has the values (2,3), (4,7), (6, 11), (8, 19) etc. I would like to draw a third graph using the two graphs like (1, y1/y2), (2, y1/y2), (3, y1/y2), (4, y1/y2) etc. Here y1 is the value from graph 1 and y2 the corresponding value from graph 2. Now, I am doing using a long method. First find the equation for graph 1 and then find the y values for x=1,2,3 etc. The technique is repeated for graph 2. Then I divide the values and plot the graph. It is tedious. Is there a faster way?
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