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8-sinf Matematika 2-chorak

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Aprel 20, 2021

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OMAD YOR BO'LSIN!

8-sinf Matematika 2-chorak

Testni Shirinboyev Temur tayyorladi.

1 / 25

Funksiya y=-3x+5 formula bilan berilgan. x ning shunday qiymatini topingki y=-1 bo`lsin.

A) x=2

B) x=0

C) x=4

D) x=1

2 / 25

To'g'ri to'rtburchakning perimetri 66 smga teng eni esa 15 sm. Shu to'rtburchakning bo'yini toping?

A) 36

B) 23

C) 20

D) 18

3 / 25

Qavariq 18 burchakning tomonlari sonini toping.

A) 18

B) 9

C) 9

D) 20

4 / 25

Funksiyalar qanday usullarda beriladi.

A) formula, jadval

B) formula, jadval, sistema

C) sistema, jadval, grafik

D) formula, jadval, grafik

5 / 25

Qavariq n burchak ichki burchaklarning yig`indisi qaysi formula yordamida topiladi?

A) 180(n-3)

B) 180(n-2)

C) n-2/n

D) 180(n-2)/n

6 / 25

Ta'rifni to'ldiring. Ikala tamoni parallel, qolgan tamonlari parallel bo'lmagan to'rtburchak .... deb ataladi.

A) romb

B) parallelogramm

C) trapetsiya

D) kvadrat

7 / 25

Quyidagi nuqtalardan qaysi biri y=3x+7 funksiyaga tegishli.

A) (1;11)

B) (2;10)

C) (3;5)

D) (-1;4)

8 / 25

y=-2x+b fuksiya grafigi M(-1;7) nuqtadan o`tadi, b ni toping.

A) -5

B) 5

C) 9

D) 3

9 / 25

Ta'rifni to'ldiring. Qarama-qarshi tamonlari o'zaro parallel bo'lgan to'g'ri to'rtburchak .... deb ataladi.

A) Parallelogramm

B) Trapetsiya

C) Romb

D) Uchburchak

10 / 25

Quyidagilardan qaysi biri chiziqli funksiyaga misol bo'ladi?

A) y=2x+5

B) y=250

C) y=2x²+3

D) y=3x²

11 / 25

Quyidagi nuqtalardan qaysi biri y=-2x+5 funsiyaga tegishli emas?

A) (-2;9)

B) (3;-1)

C) (1;-3)

D) (0;5)

12 / 25

S(t)=60t funksiya berilgan bo'lsa, S(3) ni toping.

A) 30

B) 20

C) 90

D) 180

13 / 25

Nuqtalar abssissasini toping. (1;0), (4;0), (0;-2)

A) 1, 4, 0;

B) 1, 0, 0;

C) 0, 0, -2;

D) 1, 4, -2.

14 / 25

To'g'ri to'rtburchak bir tomoni 16 smga perimetri 70 smga teng ikkinchi tomonini toping.

A) 20

B) 35

C) 19

D) 18

15 / 25

Olti burchakning ichki burchaklari yig`indisini toping.

A) 540˚

B) 180˚

C) 360˚

D) 720˚

16 / 25

106 ni kvadirati toping.

A) 1236

B) 1234

C) 11236

D) 11225

17 / 25

Tenglmalar sistemasini yeching.

A) x=2, y=-1

B) x=-2, y=1

C) x=2, y=1

D) x=1, y=2

18 / 25

x ning qanday qiymatida funksiyaning qiymati 1 ga teng bo’ladi

A) 1/3; 1/2

B) 15/15

C) 1/2; 1/2

D) 15/8

19 / 25

Tengsizlikni yeching: 5(x-3)+2x<4x+3

A) x<-6

B) x>6

C) x>-6

D) x<6

20 / 25

Tengsizlikni yeching:

4(x-1)+5(x+1)<6(x+2)+7(x-1)

A) x<-6

B) x>1

C) x>-1

D) x<-1

21 / 25

(x,y ) sonlar juftligi $\left\{\begin{matrix} {7x-8y=10} & \\ {2x+y=-7} & \end{matrix}\right.$ sistemaning yechimi bo`lsa, y*x ni aniqlang

A) 5

B) -4

C) 6

D) -5

22 / 25

Kitob va daftar birgalikda 1100 so`m turadi. Kitob narxining 5% i daftar narxining 10% idan 25 so`m qimmat. Kitob va daftar alohida-alohida qancha turadi.

A) 750 so`m, 350 so`m

B) 950 so`m, 150 so`m

C) 900 so`m, 200 so`m

D) 800 so`m, 300 so`m

23 / 25

7x+5 $\geq$ 3(x-1)-4x tengsizlikning yechimi bo`ladigan eng kichik butun sonni toping.

A) x=-2

B) x=2

C) x=-1

D) x=1

24 / 25

Ikki xonali sonning raqamlari yig`indisi 9 ga teng. Shu raqamlar bilan teskari tartibda yozilgan son berilgan sondan 27 ta ortiq. Berilgan sonni toping.

A) 36

B) 26

C) 20

D) 72

25 / 25

a ning qanday qiymatlarida $\left\{\begin{matrix} ax-2y=0 & \\ 3x+2y=5& \end{matrix}\right.$ tenglamalar sistemasi yechimga ega bo`lmaydi.