Alg. Ch. 11 Vocab McDougal Littell
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Created by:
ChibsterRama on March 29, 2012
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19 terms
Terms | Definitions |
|---|---|
 Proportion | An equation stating that two ratios are equal. |
| Extremes of a Proportion | The first and last terms of a proportion. |
| Means of a Proportion | The middle terms of a proportion |
| Solving a Proportion | To solve a proportion, cross multiply. |
| Extraneous Solution | An apparent solution that must be rejected because it does not satisfy the original equation |
| Base Number of a Percent Equation | The number that is being compared to in any percent equation; The number b in the verbal model a is p percent of b. |
| Inverse Variation | Y varies inversely as x if there is some nonzero constant k such that xy=k or y=k/x. |
| Constant of Variation | The constant k in direct and inverse variation equations. |
| Rational Number | A number that can be written as a fraction. |
| Rational Expression | A fraction whose numerator, denominator, o both numerator and denominator are nonzero polynomials. |
| Simplified Rational Expression | A rational expression in which the numerator and denominator have no common factors other than ±1. |
| Geometric Probability | The probability of an event is based on a ratio of geometric measures such as length or area. |
| Least Common Denominator | The least common multiple of the denominators of two or more fractions. |
| Polynomial Long Division | A method used to divide polynomials similar to the way you divide numbers. |
| Rational Equation | An equation that contains one or more rational expressions. |
| Rational Function | A function that can be written as a polynomial divided by a polynomial. |
| Hyperbola | The graph of a rational function. |
| Center of a Hyperbola | The point (h, k) in the graph of the rational function f(x)=(a/x-h)+k. |
| Asymptote | A line that a graph approaches; The distence between the graph and the line approaches zero. |
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