Introductory Algebra Glossary

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Introductory Algebra Glossary

• Unit Six

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rational expression

• The quotient of two polynomials with denominator
  not zero, an algebraic fraction.

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constant of variation

• In the equation y kx, the number k.

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inverse variation

• y varies inversely as x if there is a constant k
  such that y k / x.

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linear inequality in two variables

• A linear inequality in two variables can be
  written in the form
• Ax By lt C or Ax By gt C,
• where A, B, and C are real numbers and A and B
  are not both zero.

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boundary line

• In the graph of a linear inequality, the line
  separating the region that satisfies the
  inequality from the region that does not.

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components

• In an ordered pair (x, y), x and y are called the
  components

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relation

• A set of ordered pairs.

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domain

• The set of all first components (x-values) in the
  ordered pairs of a relation

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range

• The set of all second components (y -values) in
  the ordered pairs of a relation.

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function

• A set of ordered pairs in which each first
  component corresponds to exactly one second
  component.

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Return to Introductory Algebra

• Created by
• James Q. Jacobs