9-sinflar uchun matematika 5

9-sinf matematika (A-Guruh)
1. ni qisqartiring.
A) B) C)
D)
2. ning qanday qiymatlarida

tenglamaning ildizlari qarama-qarshi sonlar bo’ladi?
A) 5 B) 0 C) D)
3. ni soddalashtiring.
A) B) C) D)
4. tenglamaning va ildizlari orasida munosabat o’rinli. ning qiymatini toping.
A) -2 B) -2,5 C) -1,5 D) -1
5. tenglama teng ildizlarga ega bo’ladigan ning barcha qiymatlarini toping.
A) 4; -2 B) 1 C) -2 D) -1
6. Agar bo’lsa, ning qiymatini toping.
A) 72 B) 54 C) 45 D) 63
7. tengsizlikning butun sonlardan iborat echimlari nechta.
A) 1 B) 4 C) 3 D) 2
8. n ning qanday qiymatlarida tenglamaning ildizlari bo‘lmaydi?
A)5 B)-2 C)1 D)-5
9. Agar bo’lsa, f(1) –f(-2) ni hisoblang.
A) 3 B)-12 C) -3 D) 9
10.Ifodani soddalashtiring

A) –a+2 B) a+4 C)a+2D) -3(a+2)
11.Agar bo’lsa,
a+b+c ning qiymatini toping.
A) 2 B) 6 C) 8 D) -2
12. tenglamaning haqiqiy ildizlar yig’indisini toping (agar yagona bo’lsa,ildizini) toping
A) -5,75 B) 2,25 C) -0,75 D) -2,75
13. Mahsulot narxi 10% ga orttirildi. Ma’lum muddat o‘tgach talab kam bo‘lgani uchun uning narxi 10 % ga pasaytirildi. So‘nggi narx dastlabki narxdan necha foiz o’zgardi?
A)O’zgarmaydi B) 1 % ortdi C) 2% ortdi
D) 1 % kamaydi
14.Tengsizlikni yeching:
A) Ø B) C) D)

9-sinflar uchun matematika (A-Guruh)

1. ni qisqartiring.
A) B) C)
D)
2. ning qanday qiymatlarida

tenglamaning ildizlari qarama-qarshi sonlar bo’ladi?
A) 5 B) 0 C) D)
3. ni soddalashtiring.
A) B) C) D)
4. tenglamaning va ildizlari orasida munosabat o’rinli. ning qiymatini toping.
A) -2 B) -2,5 C) -1,5 D) -1
5. tenglama teng ildizlarga ega bo’ladigan ning barcha qiymatlarini toping.
A) 4; -2 B) 1 C) -2 D) -1
6. Agar bo’lsa, ning qiymatini toping.
A) 72 B) 54 C) 45 D) 63
7. tengsizlikning butun sonlardan iborat echimlari nechta.
A) 1 B) 4 C) 3 D) 2
8. n ning qanday qiymatlarida tenglamaning ildizlari bo‘lmaydi?
A)5 B)-2 C)1 D)-5
9. Agar bo’lsa, f(1) –f(-2) ni hisoblang.
A) 3 B)-12 C) -3 D) 9
10.Ifodani soddalashtiring

A) –a+2 B) a+4 C)a+2D) -3(a+2)
11.Agar bo’lsa,
a+b+c ning qiymatini toping.
A) 2 B) 6 C) 8 D) -2
12. tenglamaning haqiqiy ildizlar yig’indisini toping (agar yagona bo’lsa,ildizini) toping
A) -5,75 B) 2,25 C) -0,75 D) -2,75
13. Mahsulot narxi 10% ga orttirildi. Ma’lum muddat o‘tgach talab kam bo‘lgani uchun uning narxi 10 % ga pasaytirildi. So‘nggi narx dastlabki narxdan necha foiz o’zgardi?
A)O’zgarmaydi B) 1 % ortdi C) 2% ortdi
D) 1 % kamaydi
14.Tengsizlikni yeching:
A) Ø B) C) D)

15.(x²+3x+3)(x²+x+3)=3x² tenglamaning haqiqiy ildizlari yig’indisi modulini toping.

A) 4 B) 0 C) 8 D) 6
16. 11 ga karrali uch xonali natural sonlar nechta?
A) 99 B) 82 C) 81 D) 98
17. Agar tenglama bitta yechimga ega bo’lsa, a ni toping.
A) 10 B) 5 C)-5 D) -10
18. kesmada 3 ga bo’linganda qoldiq 1 ga , 4 ga bo’linganda qoldiq 2 ga , 5 ga bo’linganda qoldiq 3 ga va 6 ga bo’linganda qoldiq 4 ga teng bo’ladigan natural sonlar nechta?
A) 5 ta B) 4 ta C) 3 ta D) 1ta
19.Tengsizlikni yeching:
A) B) C) D)
20.Funksiyaning aniqlanish sohasini toping

A) B) C) D)
21.x>0 bo’lsa, ifodani soddalashtiring.
A)8x-3 B) -4x-2 C) -2x-2 D) x-3
22. y=-5x+12 funksiyani (0;0) nuqtaga nisbatan simmetrik funksiyani toping
A) y=5x+12 B) y=-5x-12 C) y=-5x+12 D)y=5x-12
23. va a hamda b ratsional sonlar bo’lsa , a²+b² ni toping.
A) 25 B) 5 C) 75 C) 45
24. Sakkizta ketma-ket kelgan sonlarning yig’indisi 700 ga teng. Shu sonlardan eng kichigini toping.
A) 78 B) 84 C) 82 D) 80 E) 86
25. O’suvchi geometrik progressiyaning birinchi hadi 3 ga, yettinchi va to’rtinchi hadlarining ayirmasi 168 ga teng. Shu progressiyaning maxrajini toping.
A) 2 B) C) D)
26. 2m+3; 3m+5; 4m+7; … hadlari berilgan arifmetik progressiyaning dastlabki to’qqizta hadi yig’indisini 153 ga teng. m ning qiymatini toping.
A)1 B) 2 C) 3 D) -1
27. x²-(p-5)x+4=0 tenglama haqiqiy yechimga ega bo’lmaydigan p ning barcha butun qiymatlari yig’indisini toping.
A) 45 B) 27 C) 25 D) 35
28.f(x)=x²-5x-6 funksiyaning nollari ko’paytmasini toping.
A) 6 B) 5 C) -6 D) 0
29. f(x) =(x-3)²+5 parabla uchining koordinatalari yig’inisini toping.
A) 2 B) -8 C) -2 D) 8
30._{ } bo’lsa, _{ } ni toping?
A) 44 B) 26 C) 81 D) 28

15.(x²+3x+3)(x²+x+3)=3x² tenglamaning haqiqiy ildizlari yig’indisi modulini toping.

A) 4 B) 0 C) 8 D) 6
16. 11 ga karrali uch xonali natural sonlar nechta?
A) 99 B) 82 C) 81 D) 98
17. Agar tenglama bitta yechimga ega bo’lsa, a ni toping.
A) 10 B) 5 C)-5 D) -10
18. kesmada 3 ga bo’linganda qoldiq 1 ga , 4 ga bo’linganda qoldiq 2 ga , 5 ga bo’linganda qoldiq 3 ga va 6 ga bo’linganda qoldiq 4 ga teng bo’ladigan natural sonlar nechta?
A) 5 ta B) 4 ta C) 3 ta D) 1ta
19.Tengsizlikni yeching:
A) B) C) D)
20.Funksiyaning aniqlanish sohasini toping

A) B) C) D)
21.x>0 bo’lsa, ifodani soddalashtiring.
A)8x-3 B) -4x-2 C) -2x-2 D) x-3
22. y=-5x+12 funksiyani (0;0) nuqtaga nisbatan simmetrik funksiyani toping
A) y=5x+12 B) y=-5x-12 C) y=-5x+12 D)y=5x-12
23. va a hamda b ratsional sonlar bo’lsa , a²+b² ni toping.
A) 25 B) 5 C) 75 C) 45
24. Sakkizta ketma-ket kelgan sonlarning yig’indisi 700 ga teng. Shu sonlardan eng kichigini toping.
A) 78 B) 84 C) 82 D) 80 E) 86
25. O’suvchi geometrik progressiyaning birinchi hadi 3 ga, yettinchi va to’rtinchi hadlarining ayirmasi 168 ga teng. Shu progressiyaning maxrajini toping.
A) 2 B) C) D)
26. 2m+3; 3m+5; 4m+7; … hadlari berilgan arifmetik progressiyaning dastlabki to’qqizta hadi yig’indisini 153 ga teng. m ning qiymatini toping.
A)1 B) 2 C) 3 D) -1
27. x²-(p-5)x+4=0 tenglama haqiqiy yechimga ega bo’lmaydigan p ning barcha butun qiymatlari yig’indisini toping.
A) 45 B) 27 C) 25 D) 35
28.f(x)=x²-5x-6 funksiyaning nollari ko’paytmasini toping.
A) 6 B) 5 C) -6 D) 0
29. f(x) =(x-3)²+5 parabla uchining koordinatalari yig’inisini toping.
A) 2 B) -8 C) -2 D) 8
30. _{ } bo’lsa, _{ } ni toping?
A) 44 B) 26 C) 81 D) 28