1、 2017-2018 10 3 30 1 A 1 B 2 C 3 D 4 2 19547 A 3 B 4 C 4D 4 3 0.101001 0 A 1 B 2 C 3 D 4 4 E F AC AD=BC DF=BE A B C D 4 5 5 A 4 6 B 6 3 C 5 2 D 3 4 6 m n y=2x+1 2m n A 2 B 2 C 1 D 1 7 y=mx+n 2 m n A m 0 n 2 B m 0 n 2 C m 0 n 2 D m 0 n 2 7 9 8 A x1 y1 B x2 y2 y= a 2 x+1 x1 x2 y1 y2 a A a 0 B a 0 C a
2、2 D a 2 9 A B A B 20km s km t h A 4km/h B 10km/h C 1h D B 3h 10. A 1 5 B 3 1 M x AM BM M A 7 2 0 B 8 3 0 C 5 2 0 D 2 0 10 3 30 11 9 64 12 x 13 2.68 14 m 3 2m 3 15 A 1 0 2 2 16 y= k 1 x |k| +3 k= 17 m y= m+4 x+m+2 m= 18 AOCD AE E DC D OC F D 10 8 E 19 ABC AB=AC M N BC BM=1 CN=3 MN 20 O A 1 0 C 0 4 CM
3、 x B A y=x+b b B CM D OD P x POD P 18 19 20 6 60 21 12 1 x 4x 2 9=0 2 1 0 + + 3 x+5 3 = 27 x 22 8 xoy ABC 1 ABC 2 ABC 3 ABC y 23 10 ABCD AD BC BE=AD CE BD E 1 ABD ECB 2 DCE 24 10 2 50min 180m/min x min y m y m x min 1 m min 2 50 x 80 y x 3 25 10 O OABC A 10 0 C 0 4 D OA P BC 1 ODP P 2 ODP 26 x y A B AB Rt ABC P 1 a 1 ABC S ABC 2 a BOP 3 ABC ABP a 2017-2018 3 30 1 2 3 4 5 6 7 8 9 10 3 30 11 12 13 14 15 16 17 18 19 20 6 60 21 12 1 x 4x 2 9=0 2 1 0 + + 3 x+5 3 = 27 x 22 8 xOy ABC 1 ABC 2 ABC 3 ABC y A B C 23 10 1 2 24 10 1 _ m , min 2 3 25 10 1 2 26. 10 (1) (2) (3)
