The Absolute Value Function

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1.9 Other Common Functions

• The Absolute Value Function

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• f(x) x-1

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• f(x) x - 3 - 4

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• f(x) - ( x - 3 - 4 )

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• f(x) x2 - 4x 3 g(x) x2 - 4x
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• The Square Root Function.

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• The Greatest Integer Function.
• The greatest integer value of x is defined as the
  largest integer that is less than or equal to x.
• This function has a wide application in computer
  science, where it is known as the floor function
  and is denoted

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