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Relation & Function

Algebra Relations and Functions Vocabulary

TermDefinition
x-axis The horizontal axis on a coordinate plane.
y-axis The vertical axis on a coordinate plane.
quadrants The four regions into which the x-axis and y-axis separate the coordinate plane.
origin The point at which the x-axis and y-axis intersect on a coordinate plane.
x-coordinate The x-value of an ordered pair. It represents the horizontal placement of the point.
y-coordinate The y-value of an ordered pair. It represents the vertical placement of the point.
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 x-values of the ordered pairs in a relation.
range The set of y-values of the ordered pairs in a relation.
mapping An illustration that shows 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. Replace "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 a vertical line passes through the graph of a relation only one time then it is a function.
zeros The x-intercepts of a graph of a function. The points for which f(x) = 0.
arithmetic sequnce A numerical pattern that increases or decreases at a constant rate/value.
arithmetic sequence formula A formula used to find the nth-term of an arithmetic sequence.
common difference The difference (d) between consecutive terms in an arithmetic sequence.
Created by: Mrs. J Mason
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