Representations of Relations (Lesson 2.01 p. 2)A relationdescribes a relationship and pairs input valueswith output values. It can represent a relation in severalways.In a Graph:To graph an ordered pair, start at the origin (0,0). The first value (x) tells how many spaces to go right ifpositive and left if negative. The second value (y) tells howmany spaces to go up if positive and down if negative.In a Table:To write a table of values, list the x-values in onecolumn and the y-values in the second column.In a Mapping:In a mapping, the x-values are connected tothe corresponding y-values using arrows.Representations of Relations (Lesson 2.01 p. 3)Focus QuestionHow do you determine if a relation is a function?When this happens, the relation is called afunction(A
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mathematical relationship in which each input value is pairedwith exactly one output value).To determine whether a relation is a function you look at theinput, or x, values only.