Funkcja kwadratowa

Funkcja kwadratowa

1st - 6th Grade

12 Qs

quiz-placeholder

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Funkcja kwadratowa

Funkcja kwadratowa

Assessment

Quiz

Mathematics

1st - 6th Grade

Hard

Created by

Joanna Majewska

Used 1K+ times

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12 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Wierzchołek funkcji kwadratowej  f(x)=2x2+3x5f\left(x\right)=2x^2+3x-5  ma współrzędne:

 (34,498)\left(-\frac{3}{4},\frac{49}{8}\right)  

 (34,498)\left(\frac{3}{4},-\frac{49}{8}\right)  

 (34,498)\left(-\frac{3}{4},-\frac{49}{8}\right)  

 (34,498)\left(\frac{3}{4},\frac{49}{8}\right)  

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 f(x)=2(x+12)292f\left(x\right)=2\left(x+\frac{1}{2}\right)^2-\frac{9}{2}  ma miejsca zerowe:

 12 i 92-\frac{1}{2}\ i\ -\frac{9}{2}  

 1 i 21\ i\ 2  

 1 i 21\ i\ -2  

 12-\frac{1}{2}  

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 f(x)=x2+4xf\left(x\right)=-x^2+4x  funkcja ta jest rosnąca w przedziale:

 ,2>-\infty,-2>  

 ,4>-\infty,4>  

 ,2>-\infty,2>  

 <2,<2,\infty  

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 f(x)=2x2+4x1f\left(x\right)=2x^2+4x-1  Postać kanoniczna funkcji kwadratowej to:

 f(x)=2(x1)23f\left(x\right)=2\left(x-1\right)^2-3  

 f(x)=2(x+1)2+3f\left(x\right)=2\left(x+1\right)^2+3  

 f(x)=2(x1)2+3f\left(x\right)=2\left(x-1\right)^2+3  

 f(x)=2(x+1)23f\left(x\right)=2\left(x+1\right)^2-3  

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 f(x)=14x2+x3 f\left(x\right)=\frac{1}{4}x^2+x-3\   postać iloczynowa tej funkcji to:

 f(x)=14(x+2)(x6)f\left(x\right)=\frac{1}{4}\left(x+2\right)\left(x-6\right)  

 f(x)=14(x2)(x+6)f\left(x\right)=\frac{1}{4}\left(x-2\right)\left(x+6\right)  

 f(x)=14(x+2)(x+6)f\left(x\right)=\frac{1}{4}\left(x+2\right)\left(x+6\right)  

 f(x)=14(x2)(x6)f\left(x\right)=\frac{1}{4}\left(x-2\right)\left(x-6\right)  

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 x2=3x x^2=3x\   rozwiązaniami tego równania są:

3

0 i 3

-3 i 0

0

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 f(x)=x26x+10f\left(x\right)=x^2-6x+10  funkcja  ta ma oś symetrii o równaniu

x=1

y=1

x=3

y=3

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