2.1 Graphing Absolute Value Functions Answer Key

Question: Parent function

Answer: The simplest function of a family of functions

Question: What is the formula for the absolute value parent function?

Answer: f(x) = |x|

Question: Absolute Value

Answer: This represents the distance between x and 0 on a number line; since it represents distance, this number can

be negative. Written as |x|

Question: Piecewise function

Answer: A function which is defined by multiple sub-functions, and each sub-function applying to a certain interval of the main function’s domain (a sub-domain).

Question: True or False?

Absolute value functions are not piecewise functions

Answer: False

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