Semestr 3 - egzamin

Semestr 3 - egzamin

9th - 10th Grade

10 Qs

quiz-placeholder

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Semestr 3 - egzamin

Semestr 3 - egzamin

Assessment

Quiz

Mathematics

9th - 10th Grade

Hard

Created by

Piotr Kotala

Used 1+ times

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10 questions

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1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Wierzchołkiem paraboli o równaniu

 y=x2+4xy=x^2+4x 

jest punkt:

 W (2,4)W\ \left(-2,-4\right)  

 W (2,4)W\ \left(2,-4\right)  

 W (4,0)W\ \left(-4,0\right)  

 W (4,0)W\ \left(4,0\right)  

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Rozwiązaniem równania

 4x29=04x^2-9=0 


jest para liczb:

 {3,3}\left\{-3,3\right\}  

 {0,3}\left\{0,3\right\}  

 {32,32}\left\{-\frac{3}{2},\frac{3}{2}\right\}  

 {94,94}\left\{-\frac{9}{4},\frac{9}{4}\right\}  

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Media Image

Na podstawie zamieszczonego wykresu funkcji kwadratowej możne stwierdzić, że:


a>0 i Δ>0a>0\ \ \ \cdots i\cdots\ \ \ \Delta>0

a>0 i Δ<0a>0\ \ \ \cdots i\cdots\ \ \ \Delta<0

a<0 i Δ>0a<0\ \ \ \cdots i\cdots\ \ \ \Delta>0

a<0 i Δ<0a<0\ \ \ \cdots i\cdots\ \ \ \Delta<0

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Który z punktów nie należy

do wykresu funkcji

 f(x)=x24x+3f\left(x\right)=x^2-4x+3 

 (0,3)\left(0,3\right)  

 (1,0)\left(1,0\right)  

 (2,1)\left(2,-1\right)  

 (4,2)\left(4,-2\right)  

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Wartość wielomianu
 W(x)=3x45x37W\left(x\right)=3x^4-5x^3-7  
dla
 x=2x=-2 

wynosi:

 11  

 8181  

 00  

 7-7  

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Iloczyn wielomianów  u(x)=x1u\left(x\right)=x-1  oraz  w(x)=x2+x+1w\left(x\right)=x^2+x+1  

ma postać:

 x31x^3-1  

 x3+x2x1x^3+x^2-x-1  

 x3x2+1x^3-x^2+1  

 2x212x^2-1  

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Korzystając ze wzorów skróconego mnożenia  (x4)3\left(x-4\right)^3 można zapisać w postaci sumy:



 x3+12x2+48x+64x^3+12x^2+48x+64  

 x364x^3-64  

 x312x2+48x64x^3-12x^2+48x-64  

 (x4)(x28x+16)\left(x-4\right)\left(x^2-8x+16\right)  

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