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Algebra II Chapter 9 Vocabulary

McDougal Littell Algebra II Chapter 9 Vocabulary


AB
Branches of a HyperbolaTwo symmetrical parts of a hyperbola.
Complex FractionA fracon that contains a fraction in its numerator or denominator.
Constant of VariationThe nonzero constant (usually denoted by a k) in a direct, inverse, or joint variation equation.
Cross MultiplyingA method of solving a simple rational equation for which each side of the equation is a single rational expression.
Direct VariationTwo variables x and y show this provided y = kx where k is a nonzero constant.
HyperbolaThe graphs of rational function of the form y = a/(x – h) + k
Inverse VariationTwo variables x and y show this provided y = k/x where k is a nonzero constant.
Joint VariationA relationship that occurs when a quantity varies directly as the product of two or more other quantities.
Rational FunctionA function of the form f(x) = p(x)/q(x) where p(x) and q(x) are polynomials and q(x) does not equal 0.
Simplified Form of a Rational ExpressionA rational expression in which the numerator and denominator have no common factors.