Write an equation using two points that go through the best fit line you drew on YOUR graph. The easiest way to do this is to use a free app called "Genius Scan" or "CamScanner". If you plotted your points by hand and drew your own best fit line, take a picture of your graph and attach it as a picture. On a mac, choose command-shift-4 then select the area. Take a screen shot of your graph if you have done the scatter plot and best-fit-line on your computer. Do NOT let excel write in the best fit line, as that is defeating the purpose of the exercise. If you used desmos for your scatterplot just add a screenshot of that scatterplot to a word document, then insert a shape for your line. In excel you can do this by INSERT-SHAPE, then putting it wherever you like on the graph. ![]() ![]() Make a scatter plot of your data (you can do this by hand, in or in excel but if you choose excel do not let excel draw the best fit-line for you.ĭraw in YOUR best-fit line (keep in mind yours shouldn't be the same as your classmates).
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