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Alg 2: Unit 2 Les 1

Characteristics of Relations and Functions

Set of ordered pairs represented by a set of points, graph, or an equation Relation
Set of all the x-coordinates in a relation; Independent variable Domain
Set of all y-coordinates in a relation; Dependent variable Range
Relation in which each element of the domain is paired with exactly one element of the range; Set of points in which x values only occur once; Graph where any vertical line will only cross the graph once Function
Individual points; Points not connected Discrete
Line or smooth curve; infinite number of points Continuous
Both the x-values and y-values increase; Intervals in the graph when the function goes up from left to right Increasing
x-values increase and y-values decrease; intervals in the graph when the function goes down from left to right Decreasing
Intersection of the x and y axis; Point (0,0) Origin
Representation of the x and y coordinates; Point (x,y) Ordered Pair
Created by: cindywalton