- #1

ilovemycat

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- Homework Statement
- Graphically determining the focal length of a converging lens by graphing the given object distances (do) and image distances (di)

- Relevant Equations
- 1/f = 1/do + 1/di

So I have plotted all the given data points on a graph, putting 1/di on the y- axis and 1/do on the x-axis. I have to now find focal length from the graph? I'm not sure how, I'm thinking I have to rearrange the equation 1/f = 1/do + 1/di into y = mx + b form then go from there, but I'm totally unsure how to do this. Can anyone provide guidance? Thanks