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8-sinf Matematika 2-chorak

InfoMaster

Aprel 20, 2021

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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=4

B) x=0

C) x=1

D) x=2

2 / 25

Funksiya y=x+2 formula bilan berilgan bo'lsa, M(0;2) nuqta shu funksiyaga tegishlimi?

A) tegishli

B) tegishli emas

3 / 25

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

A) 35

B) 19

C) 18

D) 20

4 / 25

Ta`rifni davom ettiring. y=x²funksiyada..

A) x erksiz o'zgaruvchi, y(x) erkli o'zgaruvchi

B) TJY

C) x erkli o'zgaruvchi, y(x) erksiz o'zgaruvchi

D) chiziqli funksiya

5 / 25

Funksiyalar qanday usullarda beriladi.

A) sistema, jadval, grafik

B) formula, jadval, grafik

C) formula, jadval

D) formula, jadval, sistema

6 / 25

Ta'rifni to'ldiring. Tamonlari teng bo'lgan to'g'ri to'rtburchak .... deb ataladi.

A) Parallelogramm

B) Kvadrat

C) Romb

D) Trapetsiya

7 / 25

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

A) 180(n-2)/n

B) n-2/n

C) 180(n-2)

D) 180(n-3)

8 / 25

y=kx+b funksiya qanday funksiyaga misol bo`ladi.

A) jadvalli

B) chiziqli

C) grafikli

D) formulali

9 / 25

y=3x funksiyaning x=3 bo`lganda y ning unga mos qiymatni toping.

A) y=6

B) y=9

C) y=3

D) y=1/3

10 / 25

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

A) 1, 4, -2.

B) 1, 0, 0;

C) 0, 0, -2;

D) 1, 4, 0;

11 / 25

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

A) (-2;9)

B) (1;-3)

C) (0;5)

D) (3;-1)

12 / 25

y=kx+4 funksiya grafigi M(1;1) nuqtadan o`tishi mumkin bo`lsa, k ni toping.

A) -3

B) 3

C) -2

D) 3

13 / 25

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

A) 180

B) 20

C) 30

D) 90

14 / 25

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

A) (3;5)

B) (2;10)

C) (-1;4)

D) (1;11)

15 / 25

Tenglmalar sistemasini yeching.

A) x=-2, y=6

B) x=6, y=-2

C) x=-6, y=2

D) x=2, y=-6

16 / 25

Tengsizlikni yeching:

A) x>0,35

B) x>15

C) x<-15

D) x>-0,35

17 / 25

Tengsizliklar sistemasining yechimi bo`ladigan eng kichik butun sonni toping:

A) x=-7

B) x=-6

C) x=7

D) x=6

18 / 25

Tenglmalar sistemasini yeching.

A) x=2, y=1

B) x=1, y=2

C) x=2, y=-1

D) x=-2, y=1

19 / 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) -4

B) -5

C) 5

D) 6

20 / 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

21 / 25

Tengsizliklar sistemasini yeching: $\left\{\begin{matrix} 3(1-x)>5-4x& \\ 13+4x<1 && \end{matrix}\right.$

A) x>-3

B) xϵø

C) x>-3

D) x<3

22 / 25

Tengsizliklar sistemasining yechimi bo`ladigan eng katta butun sonni toping:

A) x=3

B) x=-1

C) x=-2

D) x=1

23 / 25

7(1-x)>5(3-x) tengsizlikning yechimi bo`ladigan eng katta butun sonni toping.

A) x=3

B) x=-5

C) x=-3

D) x=5

24 / 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) 950 so`m, 150 so`m

B) 900 so`m, 200 so`m

C) 750 so`m, 350 so`m

D) 800 so`m, 300 so`m

25 / 25

Tenglamani yeching: 2x+1=3

A) 0,5

B) 3

C) 2

D) 1