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FunctionEnglishPPTcoursewareREPORTING
目录FunctionDefinitionFunctiontypeApplicationoffunctionsImageoffunctionTheLimitandContinuityofFunctionsThederivativeanddifferentiationoffunctions
PART01FunctionDefinitionREPORTING
FunctionsareasetofinputandoutputpairsthatspecifytherelationshipbetweentheinputandoutputTheinputofafunctioniscalledthedomain,andtheoutputiscalledtherangeThefunctionisamappingfromthedomaintotherangeDefinitionoffunctions
03GraphicalrepresentationDrawacurveonthecoordinateplanetorepresentthefunction01SymbolicrepresentationUsesymbolstorepresentthefunction,suchasf(x)=x^202TabularpresentationListtheinputandoutputpairsinatableThepresentationmethodoffunctions
ThepropertiesoffunctionsObjectivefunctionThefunctionisbothonetooneandontoOnfunctionTherangeofthefunctioncoversallpossibleoutputsOnetoonefunctionEachinputresponsetooneandonlyoneoutputObjectivefunctionNotallinputsmaptodifferentoutputsObjectivefunctionNotalloutputsaremappedfromdifferentinputs
PART02FunctiontypeREPORTING
SummarywordLinearfunctionisabasictypeoffunction,anditsgraphisastraightline.DetaileddescriptionThegeneralformofalinearfunctionisy=ax+b,whereaandbareconstants,xistheindependentvariable,andyisthedependentvariable.Thecharacteristicoflinearfunctionsisthattheslopeisaandtheinterceptisb.Inmathematicsandphysics,linearfunctionsarewidelyusedtodescribesimplerelationshipsbetweentwovariables.Linearfunction
SummaryAquadraticfunctionreferstoafunctionintheformofy=ax^2+bx+c,wherea,b,andcareconstantsanda≠0.DetaileddescriptionTheimageofaquadraticfunctionisaparabola.Accordingtothepolarityofa,theopeningoftheparabolaisupwardordownward.Aquadraticfunctionhastworootsandcanbesolvedusingtheformulax=[-b±sqrt(b^2-4ac)]/(2a).Quadrati
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