Funksiyalar

Question 1

Vaqt va uzunlik orasidagi bog‘liqlik grafigida 8 soatda ishchilar tomonidan yo‘l qurilganligi tasvirlangan. Grafikda berilgan ma’lumotlardan foydalanib ishchilar qaysi oraliqda ENG UZUN yo‘l qurganligini aniqlang.

Accepted Answer

AB

Answer

DE

Answer

CD

Answer

BC

Question 2

Rasmda $y_1=ax^2$ funksiyaning grafigi va $y_2=kx+l$ to‘g‘ri chiziq tasvirlangan. Agar bu funksiyalar $(-1;1)$ va $(3;9)$ nuqtalarda kesishgan bo‘lsa, $\frac{k}{a}+l$ ni toping.

Accepted Answer

5

Answer

4

Answer

3

Answer

6

Question 3

Agar $f(x)=x^2-1$ va $g(x)=3-2x$ bo‘lsa, $f(g(x))$ ni toping.

Accepted Answer

$4x^2-12x+8$

Answer

$4x^2+12x-8$

Answer

$5-2x^2$

Answer

$4x^2-6x+8$

Question 4

Rasmda quyidagi kvadrat funksiyalardan qaysi birining grafigi tasvirlangan?

Accepted Answer

$f(x)=-2x^2+2$

Answer

$f(x)=-x^2+2x$

Answer

$f(x)=-x^2+2$

Answer

$f(x)=-x^2+2x+2$

Question 5

Quyidagi funksiyalardan qaysi biri toq funksiya?

Accepted Answer

$y=\sin x\cdot\left(1+x^2\right)$

Answer

$y=x^4+\mathrm{ctg}\,x$

Answer

$y=\frac{x^2}{1+\lg x}$

Answer

$y=\sqrt x+x^4$

Question 6

Agar $f(x)=(x-2)\cdot g(x)$ funksiya uchun $g(x)=2x^2$ bo‘lsa, $f(x)$ funksiyani toping.

Accepted Answer

$f(x)=2x^3-4x^2$

Answer

$f(x)=x^3-x^2$

Answer

$f(x)=2x^3+4x^2$

Answer

$f(x)=-2x^3-4x^2$

Question 7

Agar $\sqrt{5}$ soni $y=-2x^2+bx-15$ funksiyaning noli bo‘lsa, $b$ ni toping.

Accepted Answer

$5\sqrt{5}$

Answer

1

Answer

$5\sqrt{2}$

Answer

$5\sqrt{3}$

Funksiyalar

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