Ix sinflar uchun Matematika fanidan test savollari I chorak I variant

IX sinflar uchun Matematika fanidan test savollari I chorak I variant

1. 
   a ning shunday qiymatini topingki, y = ax² parabola bilan y = 5x+1 to’g’ri chiziqning kesishish nuqtalaridan birining abssisasi x = 1 bo’lsin.
   

A) a = 6 B) a = -6 C) a = 4 D) a = -4 E) a = 7

2. 
   k ning shunday qiymatini topingki, y = -x² parabola bilan y = kx – 6 to’g’ri chiziqning kesishish nuqtalaridan birining abssisasi x = 2 bo’lsin.
   

A) k = -1 B) k = 1 C) k = 2 D) k = - 2 E) k = - 6

3. 
   b ning shunday qiymatini topingki, y = 3x² parabola bilan y = 2x+b to’g’ri chiziqning kesishish nuqtalaridan birining abssisasi x = 1 bo’lsin.
   

A) b = 2 B) b = - 1 C) b = 1 D) b = -2 E) b = 3

4. 
   y = x² – 2x + 4 parabolaning koordinata o’qlari bilan kesishish nuqtalarining koordinatalarini toping.
   

A) (-1; 3) B) (3; 1) C) (1; 3) D) (0; 4) E) (4; 0)

5. 
   y = - x² – 4x – 5 parabolaning koordinata o’qlari bilan kesishish nuqtalarining koordinatalarini toping.
   

A) (-1; 2) B) (2; -1) C) (5; 0) D) (-5; 0) E) (0; -5)

6. 
   y = 6x² – 5x + 1 parabolaning koordinata o’qlari bilan kesishish nuqtalarining koordinatalarini toping.
   

A) (1/3; 0), (1/2; 0), (0; 1) B) (-1/3; 0), (-1/2; 0), (1; 0) C) (0;1/3), (0; 1/2), (0; 1)

D) (1/3; 0), (-1/2; 0), (0; -1) E) to’g’ri javob berilmagan

7. 
   y = -x² + 6x + 7 parabolaning koordinata o’qlari bilan kesishish nuqtalarining koordinatalarini toping.
   

A) (-1; 0), (-7; 0), (0: -7) B) (-1; 0), (7; 0), (0: 7) C) (1; 0), (7; 0), (0: -7)

D) (-1; 2), (7; -1), (7; 0) E) (3; 16)

8. 
   y = x² – 4x parabola uchining koordinatalarini toping.
   

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

9. 
   y = x² + 6x + 5 parabola uchining koordinatalarini toping.
   

A) (3; -4) B) (-5; -1) C) (-1; -5) D) (3;4) E) (-3; -4)

10. 
    y = - x² + 2x parabola uchining koordinatalarini toping.
    

A) (-1; -1) B) (1; -2) C) (0; 2) D) (1; 1) E) (1; -1)

11. 
    y = - 5x² + 4x +1 parabola uchining koordinatalarini toping.
    

A) (2/5; 9/5) B) (-2/5; 9/5) C) (-9/5; 2/5) D) (2; 9) E) (9; 5)

12. 
    Abssissalar o’qini x = 1 va x = 2 nuqtalarda, ordinatalar o’qini esa y = ½ nuqtada kesib o’tuvchi parabolaning tenglamasini yozing.
    

A) y = 1/2x²-3/4x +1/2 B) y = 1/4x²-3/4x+1/2 C) y = x²-3x+2 D) y = x²-3/2x+1/2

E) to’g’ri javob berilmagan

13. 
    Abssissalar o’qini x = -1 va x = 3 nuqtalarda, ordinatalar o’qini esa y = 1 nuqtada kesib o’tuvchi parabolaning tenglamasini yozing.
    

A) y = -x²+2x+3 B) y = -x²/3 + 2x+1 C) y = -x²/3 +2/3x + 1 D) ) y = x²/3 - 2/3x – 1

E) to’g’ri javob berilmagan

14. 
    y = 3x² + 5x – 2 parabola qaysi choraklarda joylashgan ?
    

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

15. 
    y = x² - 4x + 6 parabola qaysi choraklarda joylashgan ?
    

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