# Linear, Nonlinear Variables - Similarities and Differences

What similarities and differences do you see between functions and linear equations studied in Ch. 3? Are all linear equations functions? Is there an instance when a linear equation is not a function? Support your answer. Create an equation of a nonlinear function and provide two inputs for your classmates to evaluate.

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#### Solution Summary

This solution discusses why a function is always an equation but why all equations aren't necessarily functions in 553 words.

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