Name_________________________________________________ Skill1:DeterminingifaRelationisaFunction DeterminingifaRelationisaFunctionbyUsingNumbers Relation–anysetoforderedpairs(x,y) Function–aspecialrelationwhereeachinputhasexactlyoneoutput. Example#1:Determineiftherelationrepresentsafunction. Example#2:Determineiftherelationrepresentsafunction. TIME OF DAY NUMBER OF CARS 5, 3 , 0, 0 , 5, 0 Example#3:Determineiftherelationrepresentsafunction. 1, 2 , 3,7 , 4, 6 , 8,1 DeterminingifaRelationisaFunctionbyUsingaGraph Example#4:Determineiftherelationrepresentsafunction. Example#5:Determineiftherelationrepresentsafunction. Example#6:Determineiftherelationrepresentsafunction. Example#7:Determineiftherelationrepresentsafunction. verticallinetest–ifyoucandrawaverticallineanywherethroughthegraph andhititinmorethanoneplace,itisNOTafunction. Example#9:Determineiftherelationrepresentsafunction. Example#10:Determineiftherelationrepresentsafunction. DeterminingifaRelationisaFunctionbyReadingtheContext Example#11:TrueorFalse? Thenumericalgrade(output)inthiscourseisafunctionofthelettergrade(input). Example#12:TrueorFalse? Thelettergradeinthiscourse(output)isafunctionofyournumericalgrade(input). Example#13:TrueorFalse? Thesalestaxonapurchaseditemisafunctionofthefinalsellingprice. PuttingitAllTogether Example#14:Inthefollowingtable,elevationistheinputandamountofsnowfallistheoutput. a)Let representtheelevationinfeetand inches.Determine 4000 . representtheamountofsnowfallin b)Write 5000 12asanorderedpair. c)Writeasentenceexplainingthemeaningof 5000 12. Example#15:YougetajobduringWinterBreakmakingpizzasatPapaMurphy’s. a)Isyourweeklypaycheckafunctionofhowmanyhoursyouworkperweek?Explain. b)Identifytheinputandoutputforthissituation. c)Ifyouearn$9perhour,completethefollowingtable. d)Let representthenumberofhoursworkedand meaningof 15 135. representthegrosspay.Writeasentenceexplainingthe
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