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Functions

Understand functions as input-output rules, evaluate and compare them, and distinguish linear from nonlinear functions.

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⚙ī¸What Is a Function?

A function assigns each input exactly one output — like a reliable machine.

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📊Evaluating & Comparing Functions

Evaluate functions using notation f(x), and compare functions given in different representations.

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📈Linear vs. Nonlinear Functions

A function is linear if its rate of change is constant; nonlinear functions have changing rates of change.

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