222222122414222322222222122414222322學年八年下期中考數(shù)學試卷一選題共10小題，分分每題4分A

B

C

DA5B

C3

D4√2x3AC

BDx0A6

B34CD39A0B12D3kxk+kkACk

1414

1Bk0Dk0a0A1

B1CDa53A5

B

35

3C5

9D1xA+12C+12x

B864D+12x010ABCB45第1頁共13頁

2215222222222152222222A2B4CD16二填題共4小，滿20分，小分x

23+y??12a0bb+50???1

????

13m

2

14三解題共9小，滿90分）151

2√2

2

2161xx2xx314x173????2??????+

a18mym1x2AB372mB第2頁共13頁

22222222193322331323220B20C8kmCB14DAABABEAE2120201691221√

122√

8

23abbABC90a第3頁共13頁

2002131ab+b第4頁共13頁

2222222222222222222222學年八年下期中考數(shù)學試卷參考答案與試題解析一選題共10小題，分分每題4分A

B

C

D93BBC2CD

DA5BC

C3

D4√2x3AC

BDx34318+240x0A6B34CD39x59x6+914x314C第5頁共13頁

1224142142222222335512241421422222223355√

12

A0B13

C23D3

12

23Ckxk+kkACk

1414

1Bk0Dk0[k+1]4kk0Da0A1B1Daayyx0C25

3A5

B

35

3C5

D2|5

33第6頁共13頁

22√2222222222√222222221xA+12C+12x

B864D+12x0x10ABCB45A2B4CD16ABCB4AC2C

8二填題共4小，滿20分，小分x√√13+y2410x0x1y3x+24??12a+50??

????

220abaaa+5b80bx80第7頁共13頁

22222121√52222222121√522a85

??1??1

??1??1

(??1)??1)(??1)

??+??2(??+??)+2????+??)+1

(??+2????2(??+??)+2????+??)+1

58+1

2

??1ab1??1

??1??1

??1??1

??1??1

1+122013+

2

√(22m+n0mn0√

2

√(2

m+n+21440xx1560x40三解題共9小，滿90分）151202√21)

2+

√5

6√52222√241226161xx第8頁共13頁

222212221222212222222123?????222212221222212222222123?????3?????2xx314xxxx40xx2x6x6+80x24xx3x23x5+50bac0

?

√????√22

√?√4xxx3+x90x3+3+3020xx17√+

a√2b

√3bba{{6

a第9頁共13頁

22222122222122222212222212a457a1b+2a3712a4b2a5ba7b1+b218mym1x2AB372myxxyx+302633x+30x63x7x3x3x9x3x213y72xx72x

x+240x4x6x3x18第10頁共頁

2222222222222222222222x3x1272m19332233132323233tsys33x]+31+2++[1+2++x2]

???)??+1)(???????22

2xyy+3y+16842

1+y482

+4

y6+316x2763162720B20C8kmCB14DAABABEAEBExeq\o\ac(△,Rt)ADEDE+AE8+第11頁共頁

2222221222222212eq\o\ac(△,Rt)BCECEBC+1420CE8++x13.313.3km2120201691x1+x+169x1222197221√

122√

86×33