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# Algebra 1 Chapter 11

### McDougal Littell

Proportion An equation that states two ratios are equal.
Extremes of a proportion In the proportion a/b=c/d a and d are the extremes.
Means of a proportion In the proportion a/b=c/d b and c are the means.
Extraneous Solution A trial solution that does not satisfy the orginal equation.
Base number of a percent equation The number that is being compared to in any percent equation.
Inverse variation The relationship of two variables x and y if there is a non zero number.
Constant of variation The constant variation model.
Rational number A number that can be written as the quotient of two integers.
Rational expression A fraction whos numerator, denominator, or both numerator and denominator are nonzero polynomials.
Simplified rational expression A rational expression is simplified if its numerator and denominator have no factors in common.
Geometric Probability The probability P is that an object is tossed onto Region A and lands in Region B.
Least common denominator The least common multiple of the denominators of two or more fractions.
Rational Equation An equation that contains rational expression.
Rational Function A function form f(x)=polynomial/polynomial
Hyperbola The graph of a rational function.
Center of a hyperbola The point (h,k) in the graph of the rational function.
Asymptote A line that graph approaches. The distance between the graph and the line approaches zero.
Created by: dhmahlman