8-Sinf matemateka test 2



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8-sinf 2
metralogiya, test, 123, 8-sinf 2, 10 Kholikova, application 2021.09.05 20-29-27, aa4ad27b7c834a4ea377056bcf4a80b6, Документ 5, Abstract Ink Drop PowerPoint Templates

8-Sinf matemateka test 2

1.X2+6x+q=0 kvadrat tenglamaning x1 va x2 ildizlari x2 =2x1 shartni qanoatlantiradi.q ni toping

A) 8 B) -2 C) -4 D) -6 E) 10



2. x2 +6x+q=0 kvadrat tenglamaning x1 va x2 ildizlari x2 =2x1 shartni qanoatlantiradi.Ildizlari ko’paytmasini toping

A) 8 B) -2 C) -4 D)-6 E) 10



3. x2 +px+3=0 kvadrat tenglamaning x1 va x2 ildizlari x2 =3x1 shartni qanoatlantiradi. Ildizlari yig’indisini toping

A)4 B)12 C)6 D)10 E) 3



4. 3x2 -8x-15=0 tenglama berilgan.x1 va x2 ildizlari bo’lsa x1+x2 ni toping

A) 8/3 B) 17 C) 3 D) 32 E)5



5.Modulli tengsizlikni yeching. |x+2|<4

A)(-4:3) B)(-6:2) C)(3:5) D)(6:-2) E) yechim yoq



6. To’g’ri chiziq kordinatalari boshidan va M(-2;5) nuqtadan o’tadi. Shu to’g’ri chiziq quydagi funksiyalardan qaysi birining grafigi bo’ladi

A) B) C) D) E)



7. . funksiya grafigi M(0;-1) N (1;-5) nuqtalardan o’tadi. va b ni to’ping?

A)k=-4, b=-1 B)k=5, b=4 C) k=6,b=3 D) k=2,b=-3 E)k=-4,b=1



8. Tenglamalar sistemasini yeching.

A) B) x=6 , y=2 C) x=-6 ,y= 2 D) x=6, y= 3 E)x=6, y=7



9. . ( ) sonlar juftligi sistemaning yechimi bo`lsa, ni aniqlang

A) 18 B)9 C)12 D)24 E)32



10. . Tengsizlikni yeching: 4(x-1)+5(x+1)<6(x+2)+7(x-1)

A)x>-2 B) x>-3 C)x>-1 D)x>4 E)x>2



11. tengsizlikning yechimi bo`ladigan eng katta butun sonni toping.

A)5 B)6 C)-5 D)-6 E)4



12. . Tengsizliklar sistemasini yeching:

A) B) -12

13. Tengsizlikni yeching:

A) B) C) D) E)



14. . Tenglmalar sistemasini yeching.

A) B)x=4, y=6 C) x=-2, y=-4 D)x=-3 y=-5 E) x=-6, y=-5



15. . Tengsizliklar sistemasini yeching:

A) B) C) D) E)yechim yoq




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