Linear Extrapolation (Jump to: Lecture | Video )

Linear Extrapolation

Linear Extrapolation involves using a linear equation to predict values that go beyond your data set.

Figure 1.

Above, we have rainfall data for January through April. From the information we already know, we have an equation that allows us to predict rainfall:

y = x + 3

Let's predict the rainfall for October:

y = (10) + 3

y = 13

Figure 2.

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