Matematika. 9 sinf. Test savollari. I – chorak I variant

Matematika. 9 sinf. Test savollari. I – chorak I variant

1. Quyidagi funksiyalardan qaysi biri kvadrat funksiya bo`ladi ?

A) y = 3x² + x³ – 8 B) y = 5x⁴ + 6x C) y = 2010x² + 41x + 9 D) y = 2x -3
2. Kvadrat funksiyaning nollarini toping: y = x² - 5x + 6
A) x₁=1, x₂=6 B) x₁= -1, x₂= - 6 C) x₁=2, x₂=3 D) x₁= -2, x₂= -3
3. Koeffitsiyenti bo’lgan gomotetiyada F ko’pburchak perimetri 12 sm va yuzi 4,5 sm² bo’lgan F₁ ko’pburchakka almashadi. F ko’pburchakning perimetri va yuzini toping.
A) 12 va 4,5 B) 4 va 0,5 C) 12 va 0,5 D) 36 va 40,5
4. Agar (-1;2) nuqta y = kx² +3x – 4 parabolaga tegishli bo`lsa, k ning qiymatini toping.
A) 9 B) 6 C) -1 D) 1
5. Funksiyaning eng kichik qiymatini toping: y = x² + 4x + 5.
A) 5 B) 9 C) 3 D) 1
6. y = -2x² +6 funksiyaning grafigi qaysi koordinata choraklarida joylashgan ?
A) I, II, III, IV B) I, II C) III, IV D) I, III, IV
7.y = 4x² +12x +9 funksiyaning o`sish oralig`ini toping.
A) (1,5; ∞) B) (-∞; 1,5) C) (-∞; -1,5] D) [-1,5; ∞)
8. Tengsizlikning barcha yechimlarini topish yoki ularning yo’qligini ko’ratish nima deb ataladi?
A) tengsizlikni yechish B) tengsizlikning yechimi
C) noma’lum D) tengsizlik
9. To’g’risini toping: Agar ikkita uchburchak o’xshash bo’lsa, ularning …
A) burchaklari proporsional bo’ladi B) tomonlari proporsional bo’ladi
C) tomonlari teng bo’ladi D) yuzlari teng bo’ladi
10. Bo’yi 170 sm bo’gan odam soyasining uzunligi 1m bo’lsa, balandligi 5,4m bo’lgan simyog’och soyasining uzunligini toping
A) B) C) D)
11. Ikkita o’xshash uchburchak yuzlari nisbati nimaga teng?
_____________________________________________________
12. p ning nechta butun qiymatida x²+px+9=0 tenglama haqiqiy ildizga ega emas?
_____________________________________________________
13. x²+6x+5<0 tengsizlikning barcha butun yechimlari yig’indisini toping
_____________________________________________________14. Parabolaning koordinata o`qlari bilan kesishish nuqtalarining koordinatalarini toping:
y= -2x² – 8x +10
_____________________________________________________
15. Parabola uchining koordinatalarini toping: y = .
_____________________________________________________


9-sinf Matematika 1-chorak 2-variant
1. Koeffitsiyenti bo’lgan gomotetiyada F ko’pburchak perimetri 12 sm va yuzi 4,5 sm² bo’lgan F₁ ko’pburchakka almashadi. F ko’pburchakning perimetri va yuzini toping.
A) 12 va 4,5 B) 4 va 0,5 C) 12 va 0,5 D) 36 va 40,5
2. Agar bo’yi 1,7 m bo’lgan odam soyasining uzunligi 2,5 m bo’lsa, soyasining uzunligi 10,2 m bo’lgan daraxt soyasining balandligi qancha bo’ladi?
A) 1,7 m B) 2,5 m C) 10,2 sm D) 6,936 m
3. Agar a=8 c=10 bo’lsa pifagor teoremasidan foydalanib uchburchakning b tomonini toping
A) 6 B) 8 C) 10 D)2
4. p ning nechta butun qiymatida x²+px+9=0 tenglama haqiqiy ildizga ega emas?
A) 10 B) 8 C) 13 D) 11
5. x²+6x+5<0 tengsizlikning barcha butun yechimlari yig’indisini toping
A) 10 B) 9 C) -9 D) -10
6. Tengsizlikning barcha yechimlarini topish yoki ularning yo’qligini ko’ratish nima deb ataladi?
A) tengsizlikni yechish B) tengsizlikning yechimi
C) noma’lum D) tengsizlik
7.y=x²-2x+4 parabolaning koordinata o’qlari bilan kesishish nuqtasining koordinatalarini toping.
A) (-1; 3) B) (3; 1) C) (1; 3) D) (0;4)
8. 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
9.Quyidagi funksiyalardan qaysi biri kvadrat funksiya bo`ladi ?
A) y = 3x² + x³ – 8 B) y = 5x⁴ + 6x C) y = 2010x² + 41x + 9 D) y = 2x -3
10. Kvadrat funksiyaning nollarini toping: y = x² - 5x + 6
A) x₁=1, x₂=6 B) x₁= -1, x₂= - 6 C) x₁=2, x₂=3 D) x₁= -2, x₂= -3
11. Agar uchburchakning tomonlari a=5 b=15 va c=17 bo’lsa bular Pifagor uchliklari bo’la oladimi?
________________________________________
12.To’g’ri to’rtburchakning tomonlari a=2x b=7y bo’lsa u holda unung primetri va yuzini hisoblang
________________________________________
13. Funksiyaning aniqlanish sohasini toping.
_________________________________________
14. berilgan funksiya uchun toping
_________________________________________
15.Tengsizlikni yeching.
_________________________________________

Matematika Uzb kanaliga obuna bo`ling