學(xué)年福省福州市樓區(qū)屏東學(xué)九年級(jí)一學(xué)期適應(yīng)性數(shù)學(xué)試（2）一選題本共8小題每分共32分）A

BCA4C

DBD3aB3aA3B4D4y23A2+2

B22

+4Cyx

Dy2x2+2ABCE70BCA65

B70

C75

D80eq\o\ac(△,Rt)ABC90ABC1eq\o\ac(△,Rt)Aeq\o\ac(△,Rt)ABC'ABBB'BB'

112121111212112121212112A1B2C

yax

2

+bx+axxy

12

ABCbacDx1Pxyax

axA1|x1|yyC1|x1|y

B1|x1|yyDyx二填題本共4小題每分共16分）1110xOyxk11DECACAE12ACB906BC8cmABCCDAFBCGGF

1112111222三解題本共4小題共52分）13ABOA1B43O01eq\o\ac(△,A)eq\o\ac(△,)A2O90eq\o\ac(△,A)eq\o\ac(△,)O1410/13250x/x131y215015ABCA90BADP12FDACDFPF

12111211221612x24mx+2yx

++yAy0x4y

參考答案一選題本共8小題每分共32分）A

BC

DABCDDA4CA1CD

BD3aB3aA3B4D4A3B34ay2

A2+2

B22

+4Cyx

Dy2x2+2y2x2+3yx2

ABCE70BCA65

B70

C75

D80ABCA55BAD55E70ADBC20BACBAD+DAC75Ceq\o\ac(△,Rt)ABC90ABC1eq\o\ac(△,Rt)Aeq\o\ac(△,Rt)ABC'ABBB'BB'A1B2C

eq\o\ac(△,Rt)ABCC90301AB

112121121212111212112121212112121212121211212ACCABBAB2yax

2

+bx+axxy

023376

ABCbacDx1xB7xb40CxDDPxyax

ax

A1|x1|yyC1|x1|y

B1|x1|yyDyxy

2

2axx2axa01||x1|a01||x1|xxyCy1|x1|C

二填題本共4小題每分共16分）11119010xOyxk

4ac44k1111DECACAEABCABCDECDE2DCDADD90

2

2

12ACB906BC8cmABCCDAFBCGGF

cm

1112111222ABHHGHFABCCCBCDCABCEBCECBECEBCDA90BCDFBCDCDA360+9090eq\o\ac(△,Rt)ABC10eq\o\ac(△,Rt)ABFHFcmHGHG3cmFGHFHG8cmFGFGHF+8三解題本共4小題共52分）13ABOA1B43O01eq\o\ac(△,A)eq\o\ac(△,)A2O90eq\o\ac(△,A)eq\o\ac(△,)O

11121112221eq\o\ac(△,A)eq\o\ac(△,)A32eq\o\ac(△,A)eq\o\ac(△,)OA11410/13250x/x131y2150113110yx/250x13+380

2150y10+380wy10xx24100x23wxx23w1950150195015ABCA90BADP12FDACDFPF1ADBADeq\o\ac(△,Rt)ABDBADB45ADEBDEADB902DFPFACeq\o\ac(△,Rt)ACE45CADADB45ADB+CDF+CADFDPDFPF161

12112211111121122111111122222222x24mx+2yx

++yAy0x4y1kya2a23y2x32+42a33y3x32+43y232+4yxy232+4y