Create a graph
If you haven't got Microsoft Excel or another spreadsheet tool handy
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If you haven't got Microsoft Excel or another spreadsheet tool handy
This really useful tool from www.physicsaviary.com can create a graph for you from your own coordinate data. It can then be used to see if the graph is linear or quadratic. You can then add curves of best fit and export the graph to use in your own work or share with others. It will produce an email link for you to retrieve a picture of the graph.
Y =MX+C is the convention for the equation of a straight line whilst Y=AX^2+BX+C is the convention for the equation of a curve. If you want to experiment with plotting equations, this is the tool for you.