#### How to identify if a function is linear, quadratic or exponential from a table given

Anonymous

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Sangeetha Pulapaka

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Recall on how to find the differences in a table

https://www.youtube.com/watch?v=tBdA6ltSi1w

In a quadratic function, we see the same number twice in the table and the 2nd difference is the same. For example

In a linear function we do not see the same number twice in the table and the 1st difference is the same. An example is shown in the figure below

In an exponential function, there is a common multiplication pattern in the y and we never see the same y value twice