巴市一中高一上學(xué)期期中考試數(shù)學(xué)試題

學(xué)必求其心得，業(yè)必貴于專精學(xué)必求其心得，業(yè)必貴于專精學(xué)必求其心得，業(yè)必貴于專精說(shuō)明：1。本試卷分第I卷和第II卷兩部分,共120分.SKIPIF1〈02.將第I卷選擇題答案代號(hào)用2B鉛筆填在答題卡上.SKIPIF1〈0第I卷（選擇題共60分）一。選擇題（5分×12=60分）在每小題給出的四個(gè)選項(xiàng)只有一項(xiàng)正確。1.如果A＝SKIPIF1〈0,那么正確的結(jié)論是(）A．0SKIPIF1<0AB.{0｝SKIPIF1<0AC.SKIPIF1〈0SKIPIF1<0AD。SKIPIF1<0A2。下列四組函數(shù)中,表示相等函數(shù)的是（）A。B。C。D.SKIPIF1〈0與SKIPIF1〈0SKIPIF1〈03。下列函數(shù)既是偶函數(shù)，又在區(qū)間SKIPIF1〈0上是減函數(shù)的為（）A．SKIPIF1〈0B.SKIPIF1<0C。SKIPIF1<0D。SKIPIF1<04。設(shè)SKIPIF1〈0，用二分法求方程SKIPIF1〈0內(nèi)近似解的過程中得SKIPIF1<0則方程的根落在區(qū)間（)A.SKIPIF1<0B。SKIPIF1〈0C.SKIPIF1〈0D。不能確定5。函數(shù)SKIPIF1〈0的定義域?yàn)椋ǎ〢．SKIPIF1〈0B.SKIPIF1〈0C。SKIPIF1〈0D。SKIPIF1〈06.已知函數(shù)SKIPIF1<0的圖象恒過定點(diǎn)SKIPIF1<0，則點(diǎn)SKIPIF1<0的坐標(biāo)是（）A．（1，5)B．（1，4)C．（0，4）D．（4，0)7.SKIPIF1〈0(）A．9 B．SKIPIF1<0 C．－9 D．SKIPIF1〈0oyx11ooyx11oyx11xyo11xy11oABCD9.函數(shù)SKIPIF1<0的零點(diǎn)所在的區(qū)間是（）A。(-1，0)B。(0，1）C.(1，2）D.（2,3）10.設(shè)SKIPIF1<0，,有(）A．B．C．D．11.設(shè)SKIPIF1<0，則SKIPIF1<0等于（）A。1B.2C。3D。412.某產(chǎn)品的成本SKIPIF1<0（萬(wàn)元)與產(chǎn)量SKIPIF1<0（臺(tái))之間的函數(shù)關(guān)系式為SKIPIF1〈0，若每件產(chǎn)品售價(jià)為25萬(wàn)元,則生產(chǎn)者不虧本時(shí)的最低產(chǎn)量為()A。100臺(tái)B。120臺(tái)C.150臺(tái)D.180臺(tái)題號(hào)二三總分17181920得分第II卷（非選擇題共60分)二。填空題（5分×4=20分)將最后結(jié)果直接填在橫線上.13.冪函數(shù)SKIPIF1〈0的圖象過點(diǎn)SKIPIF1<0，則等于．14.SKIPIF1〈0．15。函數(shù)SKIPIF1〈0，若SKIPIF1〈0，則SKIPIF1〈0．16。函數(shù)SKIPIF1〈0的單調(diào)遞減區(qū)間是_______________．三。解答題（10分×4=40分）17.已知SKIPIF1<0，SKIPIF1〈0，求SKIPIF1<018。用定義證明：函數(shù)SKIPIF1〈0在SKIPIF1<0上是增函數(shù)。19。已知函數(shù)SKIPIF1〈0;（1）求函數(shù)的定義域；（2）判定函數(shù)的奇偶性；（3)求函數(shù)的值域．20。對(duì)于函數(shù)SKIPIF1<0SKIPIF1〈0（1）若SKIPIF1<0是奇函數(shù)，求SKIPIF1〈0值；（2）在(1）的條件下，解不等式SKIPIF1〈0

高一數(shù)學(xué)期中考試試題答案選擇題二.填空題13．1614。1115。-316.SKIPIF1〈0-—-—-7分SKIPIF1<0且SKIPIF1<0，SKIPIF1<0.SKIPIF1〈0即有SKIPIF1〈0,SKIPIF1<0SKIPIF1〈0SKIPIF1<0,—--——-——9分SKIPIF1<0，即SKIPIF1<0在SKIPIF1<0上是增函數(shù)—----10分19．解：（1）SKIPIF1〈0-—---—--—2分SKIPIF1〈0SKIPIF1<0SKIPIF1<0-——-—-—-—3分＜，f(）—f（）=-=∵-＞0,＞0，＞0．即f(）-f（）＞0．∴f（x）在R上是單調(diào)減函數(shù)