MCT4C EamReview: A)EponentialandLogarithmicFunctions: 1. Simplifyeachofthefollowing: a) b) c) 2. Changetologarithmicform: a)4 =64 b)2048=2 +5. Changetoeponentialform: a)log 24=4 b)2 1=log000 4. Evaluate: a)log 2 2 b)log 2 2 c)log 270 log 10 d) 1 log5 e) log 7 49 125 f)log 2 2 log 9 2 g) log 2 + log 2 100 25 h)log 4 log 4 6+log 4 8 i) 2 log5 + 1 2 log16 5. Solvefor: a)5 2 =625 b) +2 =200 c)4(6) 5+ =420 6. Solvefor: a)log4+log=2 b)log 2 4+log 2 ( 2)=0 7. Describethetransformationsand a)f()=2 + 4 b)g()= 2( )+5 sketcheachfunction: 8. In2001,Jordanboughtanantiquesliderulefor$25.Itisestimatedthatthesliderulewillincreaseinvalueby%/year. a)findthevalueofthesliderulein2015. b)whenwillthesliderulebeworth$50? c)ifjordankeepstherulefor50years,howmuchwillithaveincreasedinvalue? 9. Asampleof500cellsinamedicalresearchlabdoublesevery20min. a)determineaformulaforthenumberofcellsattimet,wheretismeasuredinminutes. b)howlongwillittakeforthepopulationtoreach18000?answercorrectto2decimalplaces. 10.Anewcardepreciatesinvalueby4.5%everyyear.Whenwillthecarbeworthhalfitsoriginalvalue? 11.MostofCanada searthquakesoccuralongthewestcoast.in1949,therewasanearthquakeinthequeencharlotte Islandsthathadamagnitudeof8.1ontheRichterScale.In1997therewasanearthquakeinsouthwesternB.C.witha magnitudeof4.6ontherichterscale.howmanytimesmoreintensewasthe1949earthquake? 12.Theloudnesslevelofaheavysnoreis69dB.HowmanytimesmoreintenseIsasnorethanaconversationat60dB? 1.AliquidhasapHof4.5.Whatisthehydrogenionconcentration(mol/L)intheliquid? Answers: 1. a)648 10 y 48 b)mn 4 c)4 2.a)log 4 64= b)log 2 2048=+5.a) 4 =24 b)10 2 1 =000 4. a)5 b)1/5 c) d) e)2/ f) g) h)1 i)2 5.a)2 b)2.82 c) 2.40 6.a)25 b)9/4 8.a)7.81 b)2025 c)$84.60increase 9.a)n(t)=500(2) t/20 b)10.4min 10.15.05years 11.162.28 12.7.94 1..1610 5 mol/l
B)PolynomialFunctions: 1. Factoreachofthefollowingepressionsfully: a)5 2 y 15 4 y 2 b)t +6t 2 27t c)6m 2 m 2 d)625a 4 81b 4 2. Factoreachofthepolynomialsbelowanduseittofillinthechartanddrawasketchofthefunction: Function: intercepts: y intercept: As,y As,y Sketch: a)f()= (+1)( 1) b)g()= 4 5 +6 2 c)p()= + 2 2. a)findafamilyofcurvesequationofaquarticfunctionwithzeroesat 2and0. b)findaspecificequationforafunctionthatistangenttothe aisat 1,and f() 0 for 2 4. Findtheequationthatmodelsthegraphbelow: a) b) 5. Theareaofarectangleisgivenbytheepression15 2 +26+8.Findtheperimeteroftherectangle.
C)PolynomialEquations: 1. Solveeachofthefollowingequations: a) 2 +7+10=0 b)6a 5a 2 6a=0 c)12t 2 = 5t 2. Thebaseofatriangleis4cmmorethan2timesitsheight.Findthedimensionsofthetriangleifitsareais5cm 2.. Thevolumeofastoragechestismodeledbytheepression +5 2 +6. a)findthedimensionsofthebo. b)findthevolumeoftheboifthesmallestdimensionis12cm. 4. ThepopulationofatownismodeledbythefunctionP(t)=t 4 5t +80t+15000,wheretisthetimeinyearsfromthe presenttimeandpisthepopulation. a)whattypeoffunctionisp(t)? b)whichfinitedifferencesareconstantforthispolynomialfunction? c)whatisthecurrentpopulationofthetown? d)whatwillthepopulationbein8years? 5. Avideogamecompanycansell1500videogamesforapriceof$45each.Researchsuggeststhatforevery$5increase inprice,thecompanywillsell100lessgames. a)whatpricewillmaimizethecompany srevenue? b)whatisthemaimumrevenue? 6. Apieceofcardboard0cm20cmisusedtomakeabobycuttingoutasquareofequaldimensionsfromeachcorner. Findthesimplifiedepressionthatrepresentsthevolumeofthebo. D)TrigonometryofTriangles: 1. Drawthetwospecialtriangles. 2. DescribewhentouseSOHCAHTOA,SineLawandCosineLaw.. Solveforineachofthefollowing: Triangle: Answer: Triangle: Answer: 15 10 40 12 29 40 o 82 5 0 52
5. Determinethenumberoftrianglesthatcanbecreatedundereachofthefollowingrestrictions: a)a=55 o,a=12,b=9 b)a=40 o,a=7m,b=10m c)p=72 o,p=5.5cm,q=6cm 6.Findtheheightofthegiventower: 7. Findtheperimeterofapentagonthatisinscribedinsideacircleof25cm. 8. Findtheperimeterandareaofthegiventriangle.Becareful! ># =# &9M! KLM! L@#"#!?# 9. Mattisrepairingthewiringonaradiobroadcasttower.Heisinthebasketofarepairtruck40mfromthetower.Hecan seethetopofthetoweratanangleofelevationof42 o.hecanseethebaseofthetowerifhelooksdownatanangleof 2 o. a)drawadiagramtorepresentthissituation. b)howhighisthetower? E)TrigonometricFunctionsandPeriodicMotion: 1. Fillinthechartbelowforeachofthefollowingangles: Sketch: StandardAngle: RAA: Principle Angle: Positive Co terminal: Negative Co terminal: a) 140 o b) 50 c) 520 o d) 800 o 2. UsingSpecialAngleTrianglesandthegraphsofthesineandcosinefunctions,findtheeactvalue: a)cos45 o b)tan0 o c)sin60 o d)cos180 o e)sin 90 o. UsetheCASTRuleandSpecialAngleTrianglestofindtheeactvalueof: a)sin15 o b)cos15 o c)tan210 o d)tan( 210 o ) e)cos( 0 o )
4. Solveforallvaluesofthetainthedomain foreachofthefollowing: a) tanθ = 0.76 b) cosθ = 0.879 c) sinθ = 2 d) tanθ = 1 5.Completethechartbelow: Function Amplitude Period PhaseShift (withdirection) AisofFunction (Asanequation) Maimum Minimum a) y = 2 cos(θ + 900 ) +1 ( ) b) 1 y = sin 2 θ 90o 4 6.Usethechartabovetosketchthegraphforeachequationbelow: a) y = 2 cos(θ + 900 ) +1 b) 1 y = sin 2 θ ( 90o) 4 4 y 2 1!1!2!!4 7.Determinethefunctionforthefollowingusingthegivensinusoidalfunction: a)period120 o,amplitude2andma(0 0,1)giveny=sin b)themaimumisandtheminimumis.theperiodis180 o andthegraphbeginsat(0,0)giveng()=cos 8. Findtheequationthatbestmodelseachgraphbelow: 4 y 2 1!1!2!!4 a) b) 9. AFerriswheelhasadiameterof18mandalowestpointat2mabovetheground.CatherineboardstheFerriswheelat thebottomandfindsthatshereachesthetopoftheferriswheel16secondslater. a)findtheequationthatmodelscatherine sheightontheferriswheel. b)findcatherine sheightafter2minutesontheride.
F)Vectors 1. Forthegivendiagram,findavectorequivalentto a) AB b) DF c) AE + AC d) BE + CD e) CH CG f) GF CB g) BD + CG + FA h) AG DH FD 2. Forthegivendiagram,findavectorequivalentto a) AD + AH b) BC + FH c) CH DB d) HB CD. Findthehorizontalandverticalcomponentsofavectorwitheachgivenmagnitudeandbearing: a) m = 20N,[N40 o W] b) m = 5.8N,[220 o ] c) m = 100N,[S o E] 4. A0kgmassisonarampinclinedat5 o. a)whatistheforceofgravityactinguponthemass? b)findthehorizontalandverticalforcesacting uponthemass. 5. TwoATV sareusedtopullacrate.ropesareattachedtothecratesoftheatvasshown.findthemagnitude anddirectionoftheresultantforce. %,06)(1+#0 6. Aplanetravelsat200km/honaheadingof[S0 o W].Findtheresultantvelocityoftheplaneasitfliesintoa windwithavelocityof50km/h[s70 o E]. 7. Aboattravelsonaheadingofnorthwestat10km/h.Becauseofthecurrent,theboatisactuallytravellingat 8km/h[N0 o W].Findthehorizontalandverticalcomponentsofthecurrent.
G)GeometryandMeasurement Length Area Mass Capacity Volume 1in=2.54cm 1ft=0.048m 1yd=0.9144m 1mile=1.609km 1in 2 =6.45cm 2 1ft 2 =0.0929m 2 1yd 2 =0.84m 2 Iacre=4047m 2 1oz=28.6g 1lb=0.454kg 1T=0.91t 1floz=29.6m 1qt=0.947L 1gal=4.546L 1in =16.9cm 1ft =0.028m 1. Findtheareaandperimeterofthedeckdesignedattheright, a)infeet b)inmetres 2. Acubeandaspherebothhaveasurfaceareaof400cm 2.Whatarethevolumesof eachshape?. Agolfballhasadiameterof4.cm.Howmuchemptyspaceisthere,ininches,inacylindricalcanthatfits eactly4golfballs? 4. Describethedifferencebetweeneachsetofterms: a)secantandtangent b)secantandchord c)arcandsector e)sectorandsegment 5. a)acirclewitharadiusof12incheshasanarclengthof2feet.whatisthecentralangleofthearc? b)thecentralangleofasectoris200 o.findtheradiusofthecircleiftheareaofthesectoris40cm 2. 6. Thedistancefromthecentreofacircletoapointoutsidethecircleis0cm.Thelengthofthetangentdrawn fromthispointtothecircleis20cm.whatistheradiusofthecircle? 7. a)findtheareaofthesectorboundbychordsacandbc. b)findtheareaofthesegmentbelowchordab. %K#4C# ####?# <<;=# %K#4C# #=# #####>#
MCT4C EamReview Answers: A)EponentialandLogarithmicFunctions: 1. a)648 10 y 48 b)mn 4 c)4 2.a)log 4 64= b)log 2 2048=+5.a) 4 =24 b)10 2 1 =000 4. a)5 b)1/5 c) d) e)2/ f) g) h)1 i)2 5.a)2 b)2.82 c) 2.40 6.a)25 b)9/4 8.a)7.81 b)2025 c)$84.60increase 9.a)n(t)=500(2) t/20 b)10.4min 10.15.05years 11.162.28 12.7.94 1..1610 5 mol/l B)PolynomialFunctions: 1. a)5 2 y 2 (y 2 ) b)t(t+9)(t ) c)(2m+1)(m 2) d)(25a 2 +9b 2 )(5a+b)(5a b) 2. a)f()= (+1)( 1),1& 1,,, b)g()= 2 ( 2)( ),0&2&,0,, c)p()= ( 1)( 2),0&1&2,0,,. a)various b)various(f()=a(+1) 2 ( 2),a<0 4.a)f()= 1/12( 2) (+1) 2 (+) 2 b)f()= 1/8( 1)(+1) (+4) 2 5. 16+12 C)PolynomialEquations: 1. a) 2, 5 b)/2, 2/,0 c)1/, /4 2.b=14cm,h=5cm a),+2,+ b)2520cm 4. a)quartic b)4 th c)15000 d)2568 5.a)$60 b)$72000 6.(0 2)(20 2) D)TrigonometryofTriangles:. i)9.66 ii)17.46 o iii)44.68 iv)106.00 o 5.a)1 b)2 c)2 6.111.99m 7.146.95 8.P=96.14,A=41.44cm 2 9.61.01m E)TrigonometricFunctionsandPeriodicMotion: 1.a)40,140,500, 220 b)50,10,10, 410 c)20,160,880, 200 d)80,280,280, 1160 2.a) 1 b) 1 c) b) 2 2 12 c) 1 2 d) 1 e) 2 4.a)20.61 o,200.61 o b)151.52 o,208.48 o c)240 o,00 o d)15 o,15 o 5. a)2,60 o, 90 o (Left),y=1,, 1 b)¼,180 o,90 o (right),y=0,¼, ¼ 7. a)y=2sin() 1 b)g()=cos2( 45 o ) 8.a)f()= 2.5cos½+2.5 b)h(t)=2cos6t+1 9. a)h(t)= 9cos(11.25t)+11 b)11m
F)Vectors: 1.a) CD,GH,EF b) FD,EC c) AG,BH d) BF,DH e) CD,AB f) 0 g) BC,FGh) AE 2.a) AE b) GH,DC c) CF d) FC.a)12.86N[W],15.2N[N] b).72n[w],4.44n[s] c)5.2n[e],99.86n[s] 4.a)294N b)292.88n[horiz.],25.6n[vert.] 5.841.92N,[65.2 o ] 6.197.55km/h[S15.57 o W] 7.0.15km/h[S],.07km/h[E] G)GeometryandMeasurement: 1.a)P=26.61ft,A=45ft 2 b)p=8.11m,a=4.18m 2 2.Volume=54.4cm,Sphere=751.49cm.8.26cm,5.08in 4.a)Secantintersectsattwopoints,whiletangentsintersectsatone b)endpointsofachordlieonthecircle,whilethesecantintersectsandetendsthroughthecircle. c)anarcisaportionofthecircumferenceofacirclewhileasectorisaportionoftheareaofacircle. d)sectoristheareaofacirclesubtendedbyacentralangle,whileasegmentisaportionofthatareasubtended byachord. 5.a)114.16 o b)4.79cm 6.22.6cm 7.a)188.15cm 2 b)96.05cm 2