Matematika fanidan testlar (8-sinf)
1. Algebraik ifodaning son qiymatini toping.
S= bunda a=10, b=40, n=16
A) 500 B) 400 C) 300 D) 200
2. Tenglamani yeching. 2( x – 3 ) = 3( 2 - x)
A) B) C) D)
3. Hisoblang.
A) 3,6 B) C) D)
4. Kvadratning uchta uchi berilgan. A ( 3; -2 ) B ( 3; 1) C ( 6; 1 ). ABCD kvadrat yasang. D uchining koordinatalarini toping.
A) D( 6; -2) B) D( 3; -1) C) D( 0; 6) D) D( -6; -3)
5. Quyidagi nuqtalarning qaysilari y = x + 3 funksiya grafigiga tegishli.
1) ( 0; 7) 2) ( 0; 3) 3) (-1; 4) 4) ( 1; 4) 5) ( -2; -1) 6) ( -2; 1)
A) 1; 2; 3. B) 2; 4; 6. C) 2; 3; 5. D) 1; 3; 5.
6. Quyidagi nuqtalarning qaysilari y = -x + 5 funksiya grafigiga tegishli emas.
1) ( 1; 4) 2) ( -3; 8) 3) (1; 11) 4) ( 0; 5) 5) ( -1; -3) 6) ( 3; 0)
A) 1; 2; 3. B) 4; 5; 6. C) 1; 2; 4. D) 1; 4; 6.
7. y =2x-1 funksiya grafigi qaysi chorakda yotadi?
A) I, III, IV. B) I, II, IV. C) II, III, IV. D) II, III.
8. y = kx + 4 funksiya grafigi M ( 1; -3) nuqtadan o’tadi. K ni toping.
A) 8 B) 1 C) -3 D) -7
9. y = -2x + b funksiya grafigi M ( -2; 8) nuqtadan o’tadi. B ni toping.
A) 3 B) 4 C) 5 D) 6
10. y = kx + b funksiya grafigi M ( 0; 1), N ( 1; -5) nuqtalardan o’tadi. K va b ni toping.
A) k=2, b=3 B) k=3, b=2 C) k=-4, b=-1 D) k=2, b=-3
11. y = -1,5x - 6 funksiya grafigining koordinata o’qlari bilan kesishish nuqtalarining koordinatalarini toping.
A)( 1,5; 6) va ( 0; 1,5) B)( 0; -6) va ( 3; 2) C)( 3; 2) va ( 1,5; 6) D)( 0; -6) va ( -4; 0)
12. y=-2x funksiya grafigidan y=-2x + 3 funksiyaning grafigini qanday qilib hosil qilish mumkin?
A) uch birlik y=-2x funksiya grafigini yuqoriga parallel ko’chirish kerak. B) uch birlik y=-2x funksiya grafigini pastga parallel ko’chirish kerak.
C) uch birlik y=-2x funksiya grafigini o’ngga parallel ko’chirish kerak.
D) uch birlik y=-2x funksiya grafigini chapga parallel ko’chirish kerak.
13. y (x) = 3x -1 funksiya berilgan. Y(2) ni toping.
A) 10 B) 7 C) 8 D) 5
14. y (x) = 3x -1 funksiya berilgan. Y(x) = 8 bo’lsa, x ning qiymatini toping.
A) 3 B) 4 C) 5 D) 6
15. Qavariq beshburchakning burchaklari kattaliklari 2:3:4:5:6 kabi nisbatda. Burchaklardan kattasining miqdorini toping.
A) 1360 B) 1620 C) 1560 D) 1480
16. To’g’ri to’rtburchakning eni 5ga teng, bo’yi undan 7ga ortiq. Shu to’g’ri to’rtburchakning perimetrini toping.
17. Qavariq to’rtburchakning burchaklaridan biri to’g’ri burchak qolganlari ega o’zaro 6:5:4 nisbatda. To’rtburchakning kichik burchagini toping.
18. y = funksiya qanday funksiya?
19. y = 2,5x - 5 funksiya grafigining koordinata o’qlari bilan kesishish nuqtalarining koordinatalarini toping.
20. Chiziqli funksiya y=x+2 formula bilan berilgan. Shu formulaning grafigiga
M( 0; 2), N( 1; 3), A( -1; 1), B( -4,7; -2,7), C( ; ) nuqtalar tegishlimi?
21. To’g’ri chiziq A( 0; -1) va B( 2; 5) nuqtalardan o’tadi. Uning tenglamasini yozing.
22. Ikki tomoni parallel, qolgan ikki tomoni parallel bo’lmagan to’rtburchak nomini yozing.
23. Trapetsiyaning asosidagi burchaklari 720 va 860 ga teng. Shu trapetsiyaning qolgan burchaklarini toping.
24. Burchaklaridan biri 600 , kichik diagonalining uzunligi 16 sm bo’lgan romb perimetrini toping.
25. Rombning perimetri 72 sm ga teng. Uning tomonlarini toping.
