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A function is linear if it is of the form f(x) = mx + c where m and c are constants and a is not zero.

The function implies that an increase of one unit in the input variable, x, always results in an increase of m units in the output.

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Q: How do you determine if a function is linear?
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Is linear function the same as linear equations?

No a linear equation are not the same as a linear function. The linear function is written as Ax+By=C. The linear equation is f{x}=m+b.


What is the end behavior of a linear function?

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Your age is a linear function (of time).


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