9 – sinf uchun matematika fanidan test II variant

9 – sinf uchun matematika fanidan test
II variant

1. Tengsizlikni yeching: 5 (x – 3) + 2x < 4x + 3

A) x = 6 B) x > -6 C) x > 6 D) x < 6

2. Quyida ko`rsatilgan funksiyalardan qaysilari kvadrat funksiya bo`ladi?

1) y = x² + 5x + 4 2) y = 3x³ +2x + 1 3) y = x² – x 4) y = 1/x – 4 5) y = 4x²
A) 1,2,3,4 B) 1,3,5 C) 1,2,3 D) 1,2,5

3. Kvadrat funksiya nollarini toping: y = 3x² – x

A) x = 0 x = - 1/3 B) x = 0 x = 3 C) x = 1/3 D ) x = 0 x = 1/3

4. y = x² funksiya grafigi qanday shakl ?

A) To`g`ri chiziq B) Parabola C) Nur D) egri chiziq

5. Parabola uchining koordinatalarini toping: y = x² – 6x – 7

A) (0, -16) B) (0, 16) C) (3, 16) D) (3, -16)

6. Parabolaning koordinata o`qlari bilan kesishish nuqtalari koordinatalarini toping.

y = 7x² + 4x + 11 A) (0, 11) B) (0, -11) C) (12, 11) D) (0, 22)

7. y = 3x² + 5x – 7 parabola qaysi choraklarda yotadi?

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

8. a ning shunday qiymatlarini topingki, y = ax² parabola bilan y = 5x + 1 to`g`ri

chiziqning kesishish nuqtalarining biri absissasi x = 1 bo`lsin?
A) a=7 B) a=6 C) a=5 D) a=4

9. Quyidagi nuqtalardan qaysilari funksiya grafigiga tegishli: y = 3x²

A) (-1;-3) B) (-3;27) C) (0;0) D) (-1;-1) P) (-2; -12)
A) c B) a va b C) d D) d va p

10. Tengsizlikni kvadrat tengsizlikka keltiring: 5x² + 3x > (x – 2)² + 6

A) 4x² + 7x – 10 > 0 B) 4x² + 7x – 2 > 0 C) 6x² + 7x- 8 > 0 D) 4x² – 7x – 10 > 0

11. Tengsizlikni yeching : (x – 2)(x + 3) < 0 Javob: ____________

12.To'rtburchakning burchaklari 2:3:4:6 nisbatda.Katta burchagini toping.
A)48° B)120° C)96° D)144°


13.lkkita o'xshash uchburchak yuzlarining nisbati maga teng ?
A) O'xshashlik koeffitsiyentiga B) Ularning mos tomonlari nisbatiga
C) Ularning perimetrlari nisbatiga D) O'xshashlik koeffitsiyentining kvadratiga
14. ∆АВС A₁B₁C₁ ga AB=20 sm, BC=24 sm, AC=32 sm, A₁B₁= 5 sm, BC=6 sm,
bo'lsa A₁C₁ tomon nechaga teng
Javob: __________________________
15.Katetlari 8 sm va 6 sm, bo'lgan to'g'ri burchakli uchburchakka o'xshash
uchburchakning bir kateti 30 m bo'lsa, ikkinchi kateti necha m bo'ladi?
Javob:___________________