sparknotes
Absolute Value
Terms
Absolute Value
-
The absolute value of a number a, denoted |a|, is the positive
distance between the number and zero on the number
line. It is the value of the
corresponding "unsigned" number -- that is, the number with the sign
removed.
Boundary Point
-
A value of the variable that makes the equation true when an equal sign is substituted for
an inequality sign (<,
≤
, >, or
≥
). Also called a critical point.
Critical Point
-
A value of the variable that makes the equation true when an equal sign is substituted for
an inequality sign (<,
≤
, >, or
≥
). Also called a boundary point.
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