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# Functions

TermDefinition
Coordinate Plane Formed by the intersection of two number lines, the horizontal axis and the vertical axis.
Quadrants The four regions into which the x- and y-axis separate the coordinate plane.
Origin The point at which the x- and y-axis intersect on the coordinate plane; (0,0)
Discrete Graph A graph that consists of points that are not connected.
Continuous Graph A function graphed with a line or smooth curve.
Relation A set of ordered pairs.
Domain The set of first numbers (x-values) of the ordered pairs in a relation.
Range The set of second numbers (y-values) of the ordered pairs in a relation.
Mapping Illustrates how each element of the domain is paired with an element of the range.
Function A relation in which each element of the domain is paired with exactly one element of the range.
Function Notation A way to name a function that is defined by an equation. Replay "y" with "f(x)"
Input A value substituted for an x-value in a function.
Output The result of substituting a value into a function.
Vertical Line Test If any vertical line passes through the graph of a relation no more than once, then it is a function.
Zeros The x-intercepts of the graph of a function. The points for which f(x)=0.
Created by: dc872a
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