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Help with Data Analysis for the Osmosis Lab Here is what you should have on your graph: A best fit line An equation for the line in y=-mx+b form An R2 value that is between 0 and 1 Here is what you should write in your trend based on this information (trend for this lab will be at LEAST three sentences): 1. What does your best fit line say: Think—“As…..increases…….” 2. R-squared—tells you how good the best fit line is. An R2 of 0 is a terrible line. An R2 of 1 is a perfect line (which you will never actually get when doing science)!. Based on the R2 you calculated explain if you should use your line to draw conclusions. 3. y=-mx + b. Look at the equation of the line. a. What variables are given? (answer m and b). b. What is x (answer concentration) c. What is y (answer % change)? *If % change in mass is zero, what will the sugar concentration be? Use the equation for the line to figure this out (hint you must substitute zero for either X or Y. Think about what you want to solve. *Once you find the concentration of sugar, explain what that means.