algebra chapter 9
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Created by:
shakabrah26 on April 1, 2012
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20 terms
Terms | Definitions |
|---|---|
 boundary | a line that separates a graph into half-planes |
| coordinate plane | the number plane formed by two perpendicular number lines that intersect at their zero points |
| domain | the domain of a relation is the set of all first components from each ordered pair |
| function | a function is a relation in which each element of the domain is paired with exactly one element of the range |
| functional notation | the functional notation of the equation y = x + 5 is f(x) = x + 5 |
| functional value | the symbol f(3) represents the functional value of f for x = 3 |
| graph | to graph an ordered pair means to draw a dot at the point on a coordinate plane that corresponds to the ordered pair |
| half-plane | the region of a graph on one side of a boundary |
| inverse of a relation | the inverse of any relation is obtained by switching the coordinates in each ordered pair of the relation |
| linear equation | a linear equation is an equation that may be written in the form Ax + By = C |
| mapping | a mapping illustrates how each element of the domain is paired with an element in the range |
| ordered pair | in mathematics, pairs of numbers used to locate points in the plane |
| origin | the point of intersection of the two axes of the coordinate plane |
| quadrant | one of the four regions into which two perpendicular number lines separate the plane |
| range | the range of a relation is the set of all second components from each ordered pair |
| relation | a set of ordered pairs |
| x-axis | the horizontal number line which helps to form the coordinate plane |
| x-coordinate | the first component of an ordered pair |
| y-axis | the vertical number line which helps to form the coordinate plane |
| y-coordinate | the second component of an ordered pair |
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