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functions (what is a function? (a "machine" that takes an input…
functions
what is a function?
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e.g \(f(x)=x+2\) so \(x\) in \(f(x)\) is input, \(x+2\) is output
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inverse functions
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solve by isolation, replace x with y and the function with x
if returns 1 output for 2 inputs, no inverse
special functions
radicals
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horizontal and vertical asympotate, approaching but never touch
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domain and range
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can multiply, subtract, divide and add functions
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graphing
functions
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\(kf(x)\) scale verticcally the graph,\(f(kx)\) horizontal scale towards y axis
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