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RIPASSO SECONDA equazioni diseq e parabola

Authored by sergio la malfa

Mathematics

10th - 12th Grade

Used 209+ times

RIPASSO SECONDA equazioni diseq e parabola
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15 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

le soluzioni dell'equazione  x24=0x^2-4=0  sono:

impossibile

 x=2x=2  

 x=±2x=\pm2  

 x=±4x=\pm4  

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

le soluzione dell'equazione  x2+x+1=0x^2+x+1=0  sono:

 00  

 x=1, x=2x=1,\ x=2  

 x=1, x=2x=1,\ x=2 

impossibile

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

le soluzioni di  x2+3x4=0x^2+3x-4=0  sono

 4, 1-4,\ 1  

 4, 14,\ -1  

 3, 13,\ -1  

 3, 1-3,\ 1  

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 x2+40x^2+4\ge0  

 x\forall x  

 Φ\Phi  

 x2x\ge2  

 x±2x\ge\pm2  

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 4x2>04-x^2>0  le soluzioni sono:

 x<2 x>2x<-2\vee\ x>2  

 2<x<2-2<x<2  

 x<2x<2  

 x>2x>2  

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

La seguente parabola ha equazione:

y=x2+5x4y=x^2+5x-4

y=x25x+4y=x^2-5x+4

y=x2+5x+1y=x^2+5x+1

y=x2+x+4y=x^2+x+4

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

l'equazione della seguente parabola è:

y=x26x+8y=x^2-6x+8

y=x23x+4y=x^2-3x+4

y=x23x+4y=-x^2-3x+4

y=x22+3x+4y=-\frac{x^2}{2}+3x+4

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