首页
试卷库
试题库
当前位置:
X题卡
>
所有题目
>
题目详情
如图,直线y=-x+c与x轴交于点A(3,0),与y轴交于点B,抛物线y=-x²+bx+c经过点A,B.(1)求点B的坐标和抛物线的表达式;(2)M(m,0)为x轴上一动点,过点M且垂直于x轴的直线...
查看本题答案
包含此试题的试卷
教案备课库《》真题及答案
点击查看
你可能感兴趣的试题
如图对称轴平行于y轴的抛物线与x轴交于1030两点则它的对称轴为直线.
已知如图直线y=8﹣2x与y轴交于点A.与x轴交于点B.直线y=x+b与y轴交于点C.与x轴交于点D
已知抛物线与x交于A﹣10B30两点与y轴交于点C03求抛物线的解析式.
如图在平面直角坐标系中直线AC与x轴交于C.点与y轴交于A.点直线AB与x轴交于B.点与y轴交于A.
如图直线y=2x+mm>0与x轴交于点A.﹣20直线y=﹣x+nn>0与x轴y轴分别交于B.C.两点
如图抛物线y=ax2﹣x+c与x轴相交于点A.﹣10B.30直线y=x+b与抛物线交于A.C.两点.
如图在平面直角坐标系xOy中直线y=kx+1k≠0与y轴交于点A.直线y=x+5与y=kx+1k≠0
在平面直角坐标系xOy中直线y=kx+4k≠0与y轴交于点A.1如图直线y=﹣2x+1与直线y=kx
如图直线y=kx+b与x轴y轴分别相交于点
(﹣3,0)、
(0,2),则不等式kx+b>0的解集是( )
A.x>﹣3B.x<﹣3
x>2
x<2
已知二次函数y=﹣x2+2x+m.1如果二次函数的图象与x轴有两个交点求m的取值范围2如图二次函数的
如图对称轴平行于y轴的抛物线与x轴交于1030两点则它的对称轴为直线.
如图⊙E.的圆心E.30半径为5⊙E.与y轴相交于A.B.两点点A.在点B.的上方与x轴的正半轴相交
如图抛物线y=x2+bx+c与x轴交于A.B.两点B.点坐标为30与y轴交于点C.03.1求抛物线的
如图直线y=kx+b与x轴y轴分别相交于点
(﹣3,0)、
(0,2),则不等式kx+b>0的解集是( )
A.x>﹣3B.x<﹣3
x>2
x<2
如图对称轴平行于y轴的抛物线与x轴交于1030两点則它的对称轴为.
如图直线y=2x+3与x轴交于点A.与y轴交于点B.过B.点作直线BP与x轴交于点P.且使OP=2O
已知二次函数y=-x2+2x+m.1如果二次函数的图象与x轴有两个交点求m的取值范围2如图二次函数的
如图对称轴平行于y轴的抛物线与x轴交于1030两点則它的对称轴为.
如图已知直线l与y轴x轴交于点A.08B.60两点直线y=4x-8与y轴直线l分别交于点C.D.求△
如图抛物线y=﹣x2+bx+c与x轴交于点A.﹣10B.30.1求bc的值2如图1直线y=kx+1k
热门试题
更多
x2-xy+=2
用简便方法计算102²
Hometomemeansasenseoffamiliarity熟悉andnostalgia怀旧.It'sfuntocomehome.Itlooksthesame.Itsmellsthesame.You'llrealizewhat'schangedisyou.Homeiswherewecanrememberpainlivesandsomeotherexperiences;Wepartedhere;Myparentsmethere;Iwonthreechampionshipshere. IfIclosemyeyesIcanstillhaveaclearpictureinmindofmyfirsthome.Iwalkinthedoorandseeabrownsofasurroundingalowglass﹣topwoodentable.Totherightofthelivingroomismyfirstbedroom.It'semptybutit'swheremyearliestmemoriesare. ThereisthediningroomtablewhereIcelebratedbirthdaysandwhereIcriedonHalloween﹣﹣﹣﹣whenIdidn'twanttoweartheskirtmymothermadeforme.Ialwayslikedstandingonthattablebecauseitmademefeeltallandstrong.IfIsitatthistableIcanseemyfavoriteroominthehousemyparents'room.Itissimple:abrownwoodendresserlinestherightsideofthewallnexttoatelevisionandacoupleofphotosofmygrandparentsoneachside.Theirbedismysafezone.Icanjumponitanytime﹣wakingupmyparentsifIamscaredorifIhaveanimportantannouncementthatcannotwaituntilthemorning. I'mluckybecauseIknowmyfirsthomestillexists.Itexistsinmymindandheartonaphysicalproperty住宅onWest64thstreetonthewesternedgeofLosAngeles.ItisproofIlivedIgrewandIlearned. SometimeswhenIfeellostIliedownandshutmyeyesandIgohome.Iknowit'swhereI'llfindmyfamilymydogsandmybelongings.IpurposelyleavethewindowopenatnightbecauseIknowI'llbeblamedbyMom.ButIdon'tmindbecauseIwanttohearhersaymynamewhichremindsmeI'mhome. 1Whydoestheauthorcallherparents'bedhersafezoneParagraph3? A.Itisherfavoriteplacetoplay. B.Herparentsalwaysplaytogetherwithherthere. C.Hergrandparents'photosarelinedoneachside. D.Herneedscanbesatisfiedthere. 2Whatcanbelearnedfromthepassage? A.Theoldfurnitureisstillintheauthor'sfistbedroom. B.Manypeopleoftheauthor'sagecanstillfindtheirfirstphysicalhomes C.Theauthor'sfavoriteroominherfirsthomeisthediningroom. D.TheauthorcanstillvisitherfirstphysicalmominLosAngeles. 3Sometimeswhenshefeelslosttheauthorwill. A.trytobringbackasenseofhome B.liedowninbedtohaveadream C.Openthewindowatnight D.gotoLosAngelestovisithermom 4Whatistheauthor'spurposeofwritingthispassage? A.Todescribethestateofherfamily. B.Todeclarehowmuchshelovesherfirsthouse. C.Toexpresshowmuchsheisattachedtoherhome. D.Tolookbackonherchildhood.
填空a²+ab+b²+=a-b²
计算a+b²
计算-3x+2²
Studieshaveshownittakesaphysicianabout18secondstointerruptapatientaftertheybegintalking. ItwasSunday.Ihadonelastpatienttosee.I1herroominahurryandstoodatthedoorway.Shewasanolderwomansittingattheedgeofthebed2toputsocksonherswollenfeet.Icrossedthethreshold门槛spoke3tothenurseandscannedherchartnotingshewasinstablecondition.Iwasalmostintheclear. Ileanedonthebedraillooking4ather.SheaskedifIcouldhelpputonhersocks. 5Ibeganamonologuethatwentsomethinglikethis:Howareyoufeeling?Yoursugarsandbloodpressurewerehighbutthey're6today.Thenursementionedyou'reanxioustoseeyour7who'svisitingyoutoday.It'snicetohaveafamilyvisitfromfaraway.Ibetyoureallylookforwardtoseeinghim. Eachstoryis8.Somearedetailed;othersarevague.Somehaveabeginningmiddleandend.Otherswanderwithoutaclear9.Somearetrue;othersnot.Yetallthosethingsdonotreally10.Whatmatterstothestorytelleristhatthestoryis11﹣withoutinterruptionassumptionorjudgment. Listeningtosomeone'sstorycosts12thanexpensivediagnostictestingbutiskeytohealinganddiagnosis. Ioftenthoughtof13thewomantaughtmeandIremindedmyselfofthe14ofstoppingsittingdownandtrulylistening.Andnotlongafterinanunexpected15Ibecamethepatientwithadiagnosisofmultiplesclerosis诊断为多发性硬化症atage31.Now20yearslaterIsitallthetime﹣inawheelchair. For16IcouldIcontinuedtoseepatientsfrommychairbutIhadtoresignwhenmyhandswere17.Istillteachmedicalstudentsandotherhealthcareprofessionalsbutnowfromtheperspectiveof18andpatient. ItellthemIbelieveinthepowerof19.ItellthemIknowfirsthandthatimmeasurablehealingtakesplacewithinme20someonestopssitsdownandlistenstomystory. 1A.entered B.stepped C.passed D.approached 2A.Hoping B.wishing C.struggling D.pulling 3A.quickly B.slowly C.carefully D.carelessly 4A.away B.up C.around D.down 5A.However B.Instead C.Therefore D.Moreover 6A.good B.better C.more D.well 7A.son B.daughter C.friend D.sister 8A.unique B.similar C.different D.wonderful 9A.way B.direction C.conclusion D.instruction 10A.attract B.exist C.appeal D.matter 11A.appreciated B.told C.enjoyed D.heard 12A.less B.more C.higher D.cheaper 13A.which B.how C.what D.that 14A.pleasure B.difference C.behavior D.importance 15A.twist B.accident C.occasion D.thing 16A.asgoodas B.aslongas C.assoonas D.aswellas 17A.wounded B.affected C.injected D.hurt 18A.physician B.hospital C.teacher D.school 19A.stopping B.talking C.listening D.sitting 20A.before B.when C.until D.unless
若关于x的方程+=无解求m的值.
汽车以72千米/时的速度在公路上行驶开向寂静的山谷驾驶员揿一下喇叭4秒后听到回响这时汽车离山谷多远已知空气中声音的传播速度约为340米/秒.设听到回响时汽车离山谷x米根据题意列出方程为
解方程
已知x≠0且x2+4x+1=0求的值.
计算x-y²
解方程
计算2a+²
在一次主题为中学生课余时间上网的利与弊英语讨论会上同学们对上网利弊争论不休.不能统一作为高三15班班长请你根据下列信息作一小结性发言. 注意:1发言的开头已给出.2字数100字左右. Attentionplease!Iamgoingtogiveyouasummaryoftoday'sdiscussionaboutwhetherwecouldgoonlineinoursparetime
定义如果一个关于x的分式方程=b的解等于我们就说这个方程叫差解方程.比如=就是个差解方程.1请再举一个差解方程的例子2如果关于x的分式方程=m-2是一个差解方程那么m的值是A.2 B. C.- D.-2
乙3小时走了x千米则他的速度是.
用简便方法计算a+b-c²
解方程
用简便方法计算99.8²
一列火车进入长300m的隧道从进入隧道到完全离开需20s火车完全在隧道的时间是10s求火车的长度.
已知x≠0且x+=3求x²+的值.
该文中共有十处错误每句中最多有两处错误涉及一个单词的增加删除或修改.增加:在缺词处加一个漏字符号∧并在此符号下面写出该加的词.删除:把多余的词用斜线\划掉.修改:在错的词下划一横线并在该词下面写出修改后的词.注意:1每处错误及其修改均仅限一词;2只允许修改十处多者从第11处起不计分. IhaveagoodfriendwhomnameisRose.Lastmonthshelentoneofmyfavoritebook.YesterdayIaskedhertoreturnthebookbacktome.Tomysurprisingshesaidshehadalreadygiventhebooktome.IsearchmydeskandschoolbagbutIdidn'tfindone.Ibecameveryangryaboutherandshoutedathershelefttheclassroomwithtearsinhereyes.HoweverwhenIcamehomelastnight.Iwassurprisedtofindmybooklieundermypillow.NowIregretquarrellingwithher.IamafraidIwilllosefriend.WhatshouldIdo?
计算-2a+5²
坐在行驶着的列车中的乘客我们说他是静止的是以下列哪个物体为参照物
SailingThroughHistory Agroupof1309passengersboardedtheMSBalmoralonSundayinSouthamptonEnglandonavoyagetoretracethepathoftheTitanic.TheTitanicwasthebiggestshipintheworldwhenitsailedonitsill﹣fatedmaidenvoyagein1912.Ofthe2227passengersandcrewaboardmorethan1500died.TheshipwhichwasheadedtoNewYorkCitycarriedtherichandfamousonitsfirstvoyage.ItalsocarriedimmigrantswhowereseekingabetterlifeinAmerica. RelativesofpeoplewhosailedontheTitanichistoriansauthorsandpeoplefascinatedbythestoryoftheunsinkableshipareontheBalmoral.Theywanttorememberthedoomedshipandthosewhodiedonherfirstandlastvoyage.ThehistoriclinerhadsetsailonApril101912fromSouthampton.LateatnightonApril14shehitaniceberg.IntheearlymorninghoursofApril15theTitanicsank. TheBalmoralisfollowingTitanic'soriginalroutefromSouthampton.Firstthemodern﹣daycruiselinerdockedintheportofCherbourgFrancewheretheTitanichadpickedupmorepassengers.OnMondayafternoontheBalmoralstopsinCobhIrelandtheTitanic'slastportofcallbeforesailingtoNewYork. BalmoralwillthencruisetheNorthAtlanticOceantothelocationwhereTitanichitanicebergthatrippedtheship'shull外壳.OnSundayApril15at2:20a.m.﹣thetimetheTitanicwentdown﹣passengersandcrewwillholdamemorialservice.ThenexttwodayswillbespentinHalifaxCanadawheremanyvictimsofthesinkingareburied.ThentheBalmoralwillreachitsfinaldestinationinNewYorkCitywhereTitanicwassupposedtodock﹣butneverdid. Untiltodayseveralteamsofdivershaveexploredthesite.Theyhaverecoveredsomeitemssuchasdishesandsilverwareandputthemonpublicdisplay.Andmoretripsareplannedtothewreckageinthefuture.TheTitanicanditspassengersandcrewhavebeenrememberedinbooksmoviesandTVprograms.Butthere'samuchmoreimportantcontributionthatTitanicgaveus.Aftershesanklawmakersandshipbuildersmadeshipssafer.Ittookaterribletragedytomakeshiptravelsaferforall. 1HowmanypassengersinTitanicsurvivedatlast? A.Morethan1500. B.About1309. C.About1000. D.Lessthan750. 2HowmanycountriesdoestheBalmoralreachbeforesailingtoNewYork? A.Two. B.Three. C.Four. D.five. 3TheBalmoralwillstayinCanadajust. A.inmemoryofthedeadpassengersintheBalmoral B.inmemoryofthesurvivorsinTitanic C.inmemoryofthedeadpassengersinTitanic D.inmemoryofthesurvivorsintheBalmoral 4WhatmightbethemostimportantcontributionofsunkenTitanic? A.Itssiteattractsmoreexploringteams. B.Itmakesthelatershipsmoresecure. C.Someofitsitemsareonpublicdisplay. D.Moretripsareplannedtoitswreckage.
Wereyouthefirstorthelastchildinyourfamily?Orwereyouamiddleoranonlychild?Somepeoplethink1matterswhereyouwereborninyourfamily.Buttherearedifferentideasaboutwhatbirthordermeans.Somepeoplesaythatoldestchildren2aresmartandstrong﹣willed意志坚强的areverylikely3succeed.Thereason4thisissimple.Parentshavealotoftimefortheirfirstchildandgivehimorheralotofattention.Anonlychildwillsucceedfor5samereason. Whathappenstothe6childreninthefamily?Middlechildrendon'tgetsomuchattentionsotheydon'tfeelthatimportant.Ifafamilyhasmanychildrenthemiddleonesometimesgetslostinthecrowd.Theyoungestchild7oftengetsspecialtreatment.Oftenthischildgrowsuptobefunny.Butarecentstudysawthingsquite8difference.Thestudyfoundthatfirstchildrenbelievedinfamilyrules.Theydidn'ttakemanychancesin9lives.Theyusually10followorders.Rulesdidn'tmeanasmuchtolaterchildreninthefamily.Theytookchancesandtheyoftendidbetterinlife.
某一段路程x千米如果火车以49千米/时的速度行驶那么火车行完全程需要小时.
热门题库
更多
教案备课库
教案备课库
教案备课库
教案备课库
教案备课库
教案备课库
教案备课库
教案备课库
高一下学期数学
教案备课库
高一上学期数学
高一上学期化学
教案备课库
教案备课库
教案备课库
高一上学期物理