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Definition
| A collection of objects or numbers, often shown using braces {} and usually named by a capital letter. |
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| 1. Each object or number in a set. 2. Each entry in a matrix. |
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| if every element of set B a set is contained in set A, then B is a subset of A. |
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| the set of all possible elements for a situation |
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| The complement of an event A consists of all the outcomes in the sample space that are not included as outcomes of event A. |
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| The union of sets A and B is all elements in both A and B, written as AUB. |
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| The intersection of sets A and B is all elements found in both A and B, written as A Π B. |
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| a set with no elements, symbolized by{} or Ø. |
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Term
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Definition
| i, or the principal square root of -1. |
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Term
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Definition
| any number that can be written in the form a + bi, where a and b are real numbers and i is the imaginary unit. |
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Definition
| A complex number written in the form of a +bi. |
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Term
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Definition
| Another name for a complex number of the form a + bi, when b≠0. |
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Term
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Definition
| two complex numbers of the form a + bi and a - bi, where b ≠ 0. |
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Definition
| the locus of points in a plane that are equidstant from a fixed point, called the focus, and a specific line, called the directrix. |
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| A line about whcih a figure is symmetric. In a parabola, the axis of symmetry is perpendicular to the directrix and passes through the focus. |
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Definition
| 1. The common endpoint of two or more noncollinear rays. 2. a point at which a parabola intersects its axis of symmetry. 3. the two endpoints of the major axis of an ellipse. |
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Definition
| a process used to make a quadratic expression into a perfect square trinomial. |
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Term
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Definition
| for any real numbers a and b, and any positive integer n, if a^n = b, then a is an nth root of b. |
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Definition
| a set of equations with the same variables |
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| A method of solving a system of equations in which one equation is solved for one variable in terms of the other. |
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Definition
| Eliminate one of the variables in a system of equations by adding or subtracting the equations. |
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Definition
| Any rectangular array of variables or constants in horizontal rows and vertical columns. |
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Term
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Definition
| 1.) Each object or number in a set. 2.) Each entry in a matrix. |
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Definition
| a description of te number of rows and cloumns of a matrix |
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Definition
| a situation involving chance or probability that leads to specific outcomes. |
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Term
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Definition
| If n is a positive integer, then n! = n(n-1)(n-2) *...*2x1. |
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| an arrangement of objects in which the order is important |
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Definition
| an arrangement of objects in which the order is not important |
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| measure of central tendency |
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| a number that represents the center or middle of a set of data |
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Definition
| a representation of how spread out or scattered a set of data is |
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Definition
| A table used to organize data by groups, classes or intervals |
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