Section 10
Functions
Domain
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Set of allowed inputs.
Composition
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Applies one function to the result of another.
Inverse function
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Undoes the action of an invertible function.
Operations on functions
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Defines algebraic operations pointwise.
Line
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Slope–intercept form and slope computation.
Parallelism and perpendicularity
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Slope criteria for nonvertical lines.
Translations
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Shifts the graph horizontally and vertically.
Scaling and reflection
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Scales and reflects graphs.