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Functions and change : a modeling approach to college algebra PDF

645 Pages·2010·6.638 MB·English
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Index of Applications ASTRONOMY Periodsofplanets,433,436 Trafficspacing,465 Planetarymotion,433,436 Urbantransitspeed,504 Ageoftheuniverse,104 Polaris,36 Waitingtimeintraffic,465 AlphaCentauri,36,430 Quasars,151 Angulardiamater,256 Relativistictime,82 Artificialgravity,148 BIOLOGY Saroscycles,244 Astronomy,354,361,371,388,430, Alexander’sformula,148 Sirius,36 446,451 Animalbasalmetabolicrate,447 Spectroscopicparallax,366,371 Binarystars,430 Animalmetabolicweight,447 Speedoflight,83,97 Brightnessanddistanceofstars,354, Animalmetabolismandsurfacearea, Stars,354,361,369,388 388 448 Stellardistances,36 Brightnessofstars,35,361,369 Animalmigration,464 Supergiantstars,82 Cosmology,151 Antsrunningspeed,167 Telescopes,264 Distanceofplanets,436 Bacterialgrowth,310 Telescopemagnification,264 Distanceofstars,451 Baldeagle,341 UmbraoftheEarth,225 Distanceofsun,97 Bighornsheep,533 Umbraofthemoon,225 Dopplerblueshift,151 Biomass,457 Universalgravitationalconstant,432 Dopplereffect,151 Birdflight,503 ViewingEarthfromspace,149 Dopplerredshift,151 Bison,150 Weightonthemoon,16 Earthorbitlength,15 Boronuptakebyplants,300 Whitedwarfstars,82 Earthradiusandcircumference,15 Buffalo,150 Eclipses,244 Buffalopopulationgrowth,150 Eratosthenes’measurementofthe AUTOMOBILESAFETY Caloriccontentofmollusks,355 circumferenceoftheEarth,264 Accidentreconstruction,168 Carbondioxideconcentrationsin FreefallonMars,544 Accidentsandspeed,484,500 greenhouses,80 Geostationaryorbits,432 Automobileacceleration,262 Carlson’syeastexperiment,43 Giantstars,82 Automobileaccident,168 Carryingcapacity,77,118,121 GravityonMars,260,432 Drivingspeedoncurves,241 Championtrees,449 GravityonVenus,432 Emergencystoppingdistance,430 Cohort,456 Hertzsprung-Russelldiagrams,82 Hydroplaning,445 Competitionbetweenpopulations, Hubble’sconstant,103 Skidmarks,427 169,300,562 Hubble’slaw,103 Skidmarksversusspeed,430 Cornproductionandnitrogen,81 Kepler’sthirdlaw,19,427,433,436 Stoppingdistance,442,443 Costoftransport,451 Lifeexpectancyofmainsequence Tireinflationandaccidents,445 Decayofforestlitter,466 stars,430 Traffic,445 Dinosaurhipheight,148 Lifeonotherplanets,244 Trafficaccidentreconstruction,430 Dinosaurstridelength,148 Luminosityofstars,82 Trafficaccidents,484,500 Dinosaurs,148 Mainsequencestars,82 Trafficcongestion,504 Dispersionofanimals,370 Mass-luminosityrelationforstars,446 Trafficdelay,465 Druginbloodstream,207 Newton’slawofgravitation,427,431 Trafficdensity,356 Eagles,533 OrbitofMercury,433 Trafficflow,326,356,464,465,504 Energycostofrunning,285 OrbitofNeptune,433 Trafficinjuriesandspeed,355 Epidemic,305 Parallax,36 Trafficlights,503,567 Exponentialpopulationgrowth,324, Parallaxangleofstars,451 Trafficplanning,504 550 Parsecs,366 Trafficqueues,504 Falconglidingspeed,503 PenumbraoftheEarth,225 Trafficsafety,241,244,355,430,464, Fechner’slaw,360 Periodofasatellite,432 503 Flightspeedversuslength,446 Periodsofbinarystars,430 Trafficsignals,19,244 Flyinganimals,446 Foxpopulationgrowth,128,180,205 Photosynthesis,79,325 Yellowfintunagrowthrate,411 Functionalresponse,146 Pigeonglidingspeed,206,503 Yellowfintunapopulationgrowth,416 Functionalresponsecurve,184,492 Plantgrowth,149,168 Yellowstoneelkpopulation,415 Generationtime,437,452 Plantyield,450 Yieldresponse,37 Genetics,501 Populationextinction,466 GeorgeReserve,112,172,205 Populationgenetics,501,502 BUSINESS Giantantsandspiders,432 Populationgrowth,299 Gompertzpopulationgrowthmodel, Populationgrowth-stochastic,343 AcceleratedCostRecoverySystem 417 Populationthreshold,562 taxdepreciation,59 Grainbeetles,83 Powerneededtofly,502 ACRStaxdepreciation,59 GraywolvesinMichigan,467 Proteincontentofwheat,80 Adjustableratemortgage,39 Grazingkangaroos,182 Proteininfeedmix,299 Amortization,108 Grazingrabbitsandsheep,183,353, Redkangaroo,183 Amortizationtable,126,127 387,563 ReindeeronSt.MatthewIsland,540 Annualpercentageyield,55 Greenhousecarbondioxide Relativeabundanceofspecies,373 Annuity,147 concentrations,80 Renewableresources,399 APR,6,55,126,326,551 Growthinheight,56,242 Respirationandtemperature,464 APY,55,326 Growthinheightandweight,167 Ricecropweight,284 Basicorderquantitymodel,127,502 Growthinweight,51,56 Riceplants,79 Bracketcreep,265 Growthofbacteria,280 RiceyieldsinAsia,285 Break-evenpoint,100,125,167,181, GrowthofE.colibacteria,325 Runningspeedversuslength,276, 184,206,241 Growthrateversusweight,446 282,350 Budgetconstraints,243 Hill’slaw,505 Runningspeedversustemperature, Canadiandollar,76 Holling’sfunctionalresponsecurve, 283 Canoerental,116 184 Satiationlevel,183 Carrental,99,153 Lengthandweightoffish,276,456 Secondcousins,502 Carresalevalue,145 Lengthversusageforfish,206,353, Self-thinningofplants,450 Carryingcost,127 387 Snakelength,237 Cateringaconvention,183 Lidocaineinjection,207 Soilmoisture,80 Cateringadinner,102 Logisticfunction,121 Spanoflife,84 Cellphones,108 Logisticgrowth,399 Speciescompetition,169 Compoundinterest,6,55,314,550 Logisticgrowthcurve,401 Species-arearelation,125,421,450 Consumerdemand,237 Logisticgrowthofparamecium,414 Stridelengthandspeed,429 Consumerloan,24,35,127,147,182, LogisticmodelforAfricanbees,414 Sunflowergrowth,137 550 Logisticpopulationgrowth,34,77, Survivorshipcurve,83 Continuouscompounding,34,127, 108,128,172,180,205,554, Swimminganimals,447 147,327 560 Swimmingspeedversuslength,447 Costprice,14 MacArthur–WilsonTheoryof Terminalvelocityofamouse,431 Creditcards,393 Biogeography,324 Terminalvelocityofasquirrel,431 Currencyexchange,63,76,241,299 Metabolism,447 Treeheight,237 Demandforwheat,262,300 Mitscherlich’sequation,37 Tubewormgrowth,38,184,343 Discountrate,464 Normallydistributedpopulation Vision,360 Domesticautosales,282 increase,466 vonBertalanffymodel,206,353,387 DowJonesIndustrialAverage,21 Numberofspeciesversusarea,421 Waterfleapopulationgrowth,184, EAR,55,126,326 Optimumyieldlevel,400 202,407 Economicorderquantitymodel,146 Ospreys,475 Weightgainofanimals,370 Equilibriumprice,165,238 Oxygenconsumption,285,451 Wellhead,103 Federalincometax,264 Pacifichalibutpopulationgrowth,416 Westerngreykangaroo,182 Financingacar,35 Pacificsardinepopulation,401 Wheatproteincontent,80 Fixedcosts,100,240,260,486 Pacificsardinepopulationgrowth,416 WolvesinWisconsin,356 Futurevalue,13,14,464 Photiczoneintheocean,325 Yeastpopulationgrowth,43,106 Germanmark,63 Grossdomesticproduct,53,163,389 Supplyanddemand,165,300 Catchequation,505 Grossnationalproduct,163,282 Supplyofwheat,261,300 Catfishfarm,560 Growthinsales,198 Taxdepreciation,59 Fishpopulationgrowth,197 Homeequity,17,38,59,82,185 TaxReformActof1986,59 Growthinfish,150 Incometax,33,56,167,228,237, Taxtables,264,306 Growthoffishbiomass,200 255,263,276 Teachersalaries,299 Growthofhaddock,129,355 Incometaxbracketcreep,265 Totalcost,91,100,240,260,486 Inflation,324,350 Totalrevenue,100,241,260,486 GrowthofNorthSeasole,206,353, Inflationrate,79 Tradediscount,14 387 Interestrates,343 TruthinLendingAct,15 Marinefishery,197 Inventorycost,127 Tuitionatprivateuniversities,259 NorthSeacodgrowth,201 Inventoryexpense,502 Tuitionatpublicuniversities,259 NorthSeaplaice,200 Isocostequation,164 Unattainedsales,198 Populationgrowthofmarinefisheries, Laborproductivity,135 Variablecost,100,240,260,486 Lifeinsurancerates,83 Wageincreases,343 482 Lifespan,84 Widgetproduction,58 Rateofgrowthoffish,201 Loanoriginationfees,104 Rickermodel,201 Logisticmodelforsales,414 Sardines,554 EARTHQUAKES MARCStaxdepreciation,59 Sockeyesalmon,201 Marginalprofit,276,526,528 Californiaearthquakes,130 Spawner-recruitmodel,200 Marginaltaxrate,228,256,263,306, Earthquakedamage,433 WeightandlengthofNorthSeaplaice, 525 Earthquakes,38,130,357,358,369 Marketdemand,237,262 EarthquakesinArizona,369 449 Marketsupply,237,261 EarthquakesinIdaho,369 Weightversuslengthforfish,430 Maximumsalesgrowth,198 EarthquakesinMontana,369 Yellowfintunagrowth,57 Merchandising,14 Faultrupturelength,38 ModifiedAcceleratedCostRecovery Frequencyofearthquakes,357 Systemtaxdepreciation,59 Magnitudeofearthquakes,358 FORESTRY Monthlyinterestrate,341 Majorearthquake,130 Forestgrowth,187 Monthlypayment,13,127,147 NewMadridearthquake,358 Forestlitter,466 Moore’slawforcomputerchips,369 Structuralfailureofbuildings,433 Forestlitterdecayrates,466 Mortgage,104 Tsunamibores,431 Forestmeanannualgrowth,200 Mortgageclosingcosts,104 Tsunamiwaves,325,430,431 Mortgagepayment,147 Forestrotationage,200 Mortgagepoints,104 Foreststanddensity,371 FIREFIGHTING Nominalinterestrate,326 Foreststand-densityindex,371 Oklahomaincometax,167 Fireenginepressure,165 Forestyield,187 Perpetuity,147 Firehosedischarge,129 Forestry,78,187,200,371 Presentvalue,14,35,464 Firehosefrictionloss,185 Forestrymanagement,78 Profit,100,125,206,241,260,486 Firehoses,243 Fullystockedforeststands,371 Realestatesales,57,241 Firefighting,102,129,165,185,243, Retailsales,165 283 Growthofforests,187 Roomrental,101 Headofwater,102 Longleafpines,109 Ruleof72,15 Pumpbackpressure,102 Meanannualgrowth,200 Sales,51 Underwriter’sformula,185 PacificNorthwestDouglas-fir,78 Salesstrategy,165 Waterpressure,102 Proportionsoftrees,449 Savingaccounts,342 Pulpwoodprices,468 Seriesdiscount,14 FISHERIESSCIENCE Sawtimberprices,468 Stockmarket,76,86,532 Stockturnoveratretail,165 Ageandlengthofhaddock,371 Scribnerscale,109 Stockturnoverrate,100 Biomassofhaddock,464 Timberstumpageprices,58 (continuedoninsidebackcover) This page intentionally left blank Functions and Change This page intentionally left blank Functions and Change A Modeling Approach to College Algebra Fourth Edition Bruce Crauder / Benny Evans / Alan Noell Oklahoma State University Thisprojectwassupported,inpart, bythe National Science Foundation Opinionsexpressedarethoseoftheauthors andnotnecessarilythoseoftheFoundation Houghton Mifflin Harcourt Publishing Company Boston New York GratitudeandThanks Wearedeeplygratefulforourfamilies whosupportedusandbelievedinthisproject. ForDouglas,Robbie,and,mostofall,Anne—BCC ForCarla,Daniel,andAnna—BDE ForEvelyn,Philip,Laura,Stephen,andespeciallyLiz—AVN Publisher:RichardStratton SeniorSponsoringEditor:MollyTaylor SeniorMarketingManager:JenniferJones DevelopmentEditor:CarlChudyk SeniorProjectEditor:TamelaAmbush SeniorContentManager:RachelWimberly ArtandDesignManager:JillHaber CoverDesignManager:AnneS.Katzeff SeniorPhotoEditor:JenniferMeyerDare CompositionBuyer:ChuckDutton SeniorNewTitleProjectManager:PriscillaManchester EditorialAssociate:AndrewLipsett MarketingAssistant:MichaelMoore EditorialAssistant:JoannaCarter-O’Connell Coverimage:JoelSatore/GettyImages Photocredits:Ch.P:p.1,©Astrofoto/PeterArnold,Inc.;Ch.1:p.21,©AlTielemans/SI/ NewSport/Corbis;Ch.2:p.111,©RobertoMelchiorre/Zefa/Corbis;Ch.3:p.209,©Robert Brenner/PhotoEdit,Inc.;Ch.4:p.309,©KevinWestenberg/Live8viaGettyImages;Ch.5:p.397, ©RobHoward/Corbis;Ch.6:p.513,©PaulA.Souders/Corbis. Copyright©2010byOklahomaStateUniversity.Allrightsreserved. Nopartofthisworkmaybereproducedortransmittedinanyformorbyanymeans,electronicor mechanical,includingphotocopyingandrecording,orbyanyinformationstorageorretrievalsystem withoutthepriorwrittenpermissionofHoughtonMifflinHarcourtPublishingCompanyunlesssuch copyingisexpresslypermittedbyfederalcopyrightlaw.AddressinquiriestoCollegePermissions, HoughtonMifflinHarcourtPublishingCompany,222BerkeleyStreet,Boston,MA02116-3764. LibraryofCongressControlNumber:2008933837 Fororders,usestudenttextISBNs: ISBN-13:978-0-547-15669-9 ISBN-10:0-547-15669-3 PrintedinCanada 1234567891211100908 Contents Preface ix 1.4 FunctionsGivenbyWords 85 ComparingFormulasandWords 85 GettingFormulasfromWords 88 Proportion 90 Prologue: Calculator Arithmetic 1 AnAlgebraicLook:Geometric Constructions 91 TypingMathematicalExpressions 2 Chapter1Summary 105 Rounding 2 Chapter1ReviewExercises 107 ParenthesesandGrouping 3 MinusSigns 4 SpecialNumbersπ ande 5 ChainCalculations 5 2 Graphical and Tabular ScientificNotation 7 Analysis 111 AnAlgebraicLook:OrderofOperations 8 ChapterPSummary 18 2.1 TablesandTrends 112 ChapterPReviewExercises 19 GettingTablesfromFormulas 112 OptimizingwithTablesofValues 115 AnAlgebraicLook:Limits 117 1 Functions 21 2.2 Graphs 132 Hand-DrawnGraphsfromFormulas 132 1.1 FunctionsGivenbyFormulas 22 GraphingwiththeCalculator 132 FunctionsofOneVariable 22 TracingtheGraph 133 FunctionsofSeveralVariables 23 ChoosingaViewingWindowinPractical AnAlgebraicLook:Definitionofa Settings 133 Function 25 GettingLimitingValuesfromGraphs 137 AnAlgebraicLook:Shiftingand 1.2 FunctionsGivenbyTables 40 Stretching 139 ReadingTablesofValues 40 FillingGapsbyAveraging 40 2.3 SolvingLinearEquations 152 AverageRatesofChange 41 TheBasicOperations 152 SpottingTrends 43 ReversingtheRolesofVariables 154 AnAlgebraicLook:AverageRatesofChange AnAlgebraicLook:InverseFunctionsand withFormulas 46 EquationsThatareLinearinOne Variable 157 1.3 FunctionsGivenbyGraphs 61 ReadingGraphs 61 2.4 SolvingNonlinearEquations 170 ConcavityandRatesofChange 64 TheCrossing-GraphsMethod 170 InflectionPoints 65 TheSingle-GraphMethod 171 DrawingaGraph 66 AnAlgebraicLook:SolvingNonlinear AnAlgebraicLook:SecantLinesandArea EquationsbyFactoring 175 Functions 69

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