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How to plot your data.

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1. Drawing Graphs

You must be able to draw a graph: to show the relationship between two quantities and then to work out physics constants. In this video I show you the correct choice of scales, the labels and also the way to draw in a perfect line of best fit.

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2. Gradients and y-Intercepts

y = mx + c is the most important equation you should be familiar with. But how do you calculate the gradient? What working should you show? And how do you find the y-intercept if you can't read it directly off the graph?

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