Salom Azizam sogliklaring

8-sinflar uchun algebra fanidan test savollari

1. 
   y= - 0,5x+2 va y= -3+2x fuksiyalar grafiklarining kesishish nuqtasining koordinatalarini toping
   

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

2. 
   Tenglamalar sistemasini qo’shish usulida yeching:
   

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

3. 
   Agar bo’lsa, quyidagi tengsizlkilardan qaysi to’g’ri tengsizlik bo’ladi?
   

A) m<-n B) C) D) 4m<-n E) m>-n

4. 
   –0,5; -1; 1 va 0,5 sonlaridan qaysilari –3x-4>x-1 tengsizlikning yechimi bo’ladi?
   

A) 0,5 B) –1; 0,5 C) –0,5 D) 1 E) –0,5; 1; 0,5

5. 
   Tengsizlikni yeching: 0,5x-3<2x-1
   

A) B) C) D) E)

6. 
   Tengsizliklar sistemasini yeching:
   

A) (6; 2,5) B) (-6; 2,5) C) (-6; -2,5) D) (6; -2,5) E) (-6; 0,4)

7. 
   Qo’sh tengsizlikni yeching: ;
   

A) [-1; 2,5] B) [-2; 1,5] C) [-2,5; 1] D) [-1,5; 2] E) [1; 2,5]

8. 
   Ildizning qiymatini toping:
   

A) 12,6 B) 1,26 C) 126 D) 1260 E) 0,126

9. 
   Ifodaning qiymatini toping:
   

A) B) C) D) E)

10. 
    Ildizning qiymatini toping:
    

A) 24 B) 12 C) 48 D) 96 E) 36

8-sinflar uchun algebra fanidan test savollari

1. 
   Tenglamani yeching: 3x+0,4x²=0
   

A) B)-7,5; 0 C) 7,5; 0 D) E)

2. 
   Berilgan –3; -2; -1; 0; 2; 3 sonlardan qaysilari x²-2x-3=0 tenglamaning ildizlari bo’ladi?
   

A) (-4; 2) B) (-2; 4) C) (0; 2) D) (0; 4) E) (2; 4)

2. 
   Ildizlari 10 va 12 bo’lgan kvadrat tenglama tuzing
   

A) x²+22x+120=0 B) x²-22x+120=0 C) x²-22x-120=0 D) x²+22x-120=0
E) x²-12x-120=0

2. 
   Keltirilgan kvadrat tenglamani yeching, bunda: x²-6x+8=0
   

A) 2; –4 B) 2; 4 C) -2; 4 D) –2; -4 E) 3; 4

2. 
   To’la kvadrat tenglamani yeching: 5x²-13x+6=0
   

A) B) 2 C) D) E)

2. 
   Polizning maydoni to’g’ri to’rtburchak shaklida bo’lib, bir tomoni ikkinchisidan 20 m ortiq. Agar polizning yuzi 8000 m² bo’lsa, uning tomonlari uzunliklarini toping.
   

A) 45x200 m B) 150x60 m C) 90x100 m D) 180x50 m E) 80x100 m

2. 
   Bikvadrat tenglamani yeching: x⁴+3x²-4=0
   

A) (1; 2) B) (1; -1), (2; -2) C) 2; -2 D) 1; -1 E) –1; -2

2. 
   Quyida berilgan sonlar juftidan qaysilari tenglamalar sistemasining yechimi bo’ladi?
   

A) (-2; 4) B) (-1; 1) C) (1; -1) D) (2; -4)
A) B; D B) B C) C; D D) A; B E) D

2. 
   Tenglamalar sistemasini yeching:
   

A) (1; 2); B) (9; -2); C) (1; -2); D) (9;2);
E) (1; 4);

2. 
   2x²-3x-2 kvadrat uchhadni ko’paytuvchilarga ajrating.
   

A) (x-2)(2x+1) B) (x-2)(2x-1) C) (x+2)(2x+1) D) (x+2)(2x-1) E) (x+2)(2x-1)