8-sinf 15. 03 M(-3;7) nuqta qaysi koordinata burchagida yotibdi?

8-sinf 15.03

1. M(-3;7) nuqta qaysi koordinata burchagida yotibdi?

A) I B) II C) III D) IV

2. Funksiya s = 75t formula bilan berilgan. s(5) ni aniqlang.

A) 70 B) 80 C) 365 D) 375

3. Funksiya y = 3-5x formula bilan berilgan. y ning qiymati -19 ga teng bo`lishi uchun x ning qiymati qanday bo`lishi kerak ?.

A) B) 8 C) 4,4 D) 3,2

4. y = -1,5x funksiya grafigi qaysi koordinata burchaklarida joylashgan ?

A) I, III B) II, IV C) I, II, III D) II, III, IV

5. Chiziqli funksiyani toping.

A) y = 3x² +4x -1 B) y = C) y = D) y = x³ -5

6. y = - 4x +b funksiyaning grafigi A(1; -3) nuqtadan o`tishi ma’lum bo`lsa, b ning qiymatini toping. A) 1 B) 2 C) 3 D) -2

7. Tenglamalar sistemasi berilgan: . x = 3, y = -2 sonlari juftligi uning yechimi ekanligi ma’lum, a va b ni toping.

A) a = 3, b = -2 B) a = -1, b = 5 C) a = 2, b = 6 D) a = 1, b = -5

8. Ikki sonning yig`indisi 37 ga teng, ularning ayirmasi esa 15 ga teng. Shu sonlarni toping.

A) 31 va 6 B) 21 va 16 C) 26 va 11 D) 24 va 9

9. To`g`ri to`rtburchakning perimetri 24 sm ga teng. qo`shni tomonlarining ayirmasi esa 2 smga teng. To`g`ri to`rtburchakning tomonlarini toping..

A) 7 sm, 4 sm B) 4 sm, 6 sm C) 8 sm, 6 sm D) 7 sm, 5 sm

10. Tenglamalar sistemasini yeching:

A) x = 3, y = 1 B) x = 3, y = -3 C) x = 5, y = -1 D) x = -1 , y = 5

11. Tenglamalar sistemasini yeching:

A) x = 3, y = 1 B) x = 1, y = -3 C) x = 3, y = -1 D) x = -1 , y = 3

12. Tenglamalar sistemasini yeching:

A) x = 2, y = 1 B) x = 2, y = -3 C) x = 2, y = -2 D) x = -2 , y = 2

13. (x; y) sonlar juftligi sistemaning yechimi bo`lsa, y-x ni toping.

A) 0 B) 2 C) -2 D) -1

14. Agar va bo`lsa, ni toping.

A) B) 97 C) D)

15. Qaysi uch xonali son eng ko`p bo`luvchilarga ega ?

A) B) C) D)

16. Tenglamaning ildizlarini toping:

A) B) C) D)

17. Kasr ko’rinishida tasvirlang:

A) B) C) D)

18. Sonlarni o’sish tartibida yozing:

A) B)

C) D)

19. Ifodani soddalashtiring:

A) B) C) D)

20. Tenglamaning ildizlarini toping:

A) B) C) D)

21. Uchta javonda hammasi bo’lib 385 ta kitob bor. Birinchi javonda ikkinchisiga qaraganda 8 ta ko’p, ammo uchinchi javondagidan 9 ta kam kitob bor. Har bir javonda nechtadan kitob bor?

А) 128; 120; 137 В) 127; 119; 139 С) 127; 122; 136 D) 126; 134; 125

22. Ifodani soddalashtiring:

А) 4а² + 2 В) 16а² + 12 С) -4а² + 2 D) 16а² +2

23. Hisoblang:

А) В) С) D) 1

24. Kasrni qisqartiring:

А) В) С) D)

25. Ifodani soddalashtiring:

А) В) С) D)

26. Darajaning oxigi raqamini toping. 1998¹⁹⁹⁸

А) 4 В) 8 С) 2 D) 6

27. Ko’paytuvchilarga ajrating: (3a+4b)²-9b²

A)(3a-b)(3a-7b) B)(a+1)(b+1) C)2b(a+1) D)(2a+1)(2b+1)

28. Tenglamani yeching.

А) 4 В) 3 С) -5 D) -4

29. Quyidagi nuqtalarning qaysi biri y(x)=-2x+1 funksiyaning grafigiga tegishli?

A) (-1;3) B) (2;5) C) (-5;2) D) (1;-1)

30. 31 dan 80 qacha bo’lgan sonlarning raqamlari yig’indisini toping.

A)480 B)255 C)225 D) 380