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parabola

Authored by nik Guermani

Mathematics

10th Grade

Used 2+ times

parabola
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10 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

La parabola nell'immagine può avere equazione

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

y=x2+2y=-x^2+2

y=x23y=x^2-3

y=x22y=-x^2-2

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Il vertice della parabola

 y=3x2y=3x^2  è

(0,0)

(0,3)

(0,-12)

(0,-3)

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Il vertice della parabola

 y=3x24x+1y=3x^2-4x+1  è il punto

(0,1)

 (23, 13)\left(-\frac{2}{3},\ -\frac{1}{3}\right)  

 (23, 13)\left(\frac{2}{3},\ \frac{1}{3}\right)  

 (23, 13)\left(\frac{2}{3},\ -\frac{1}{3}\right)  

4.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Media Image

La parabola in figura ha equazione  y=ax2+bx+cy=ax^2+bx+c  e
 Δ\Delta  è il discriminante dell'equazione associata. Si ha

 a>0,  c>0, Δ>0a>0,\ \ c>0,\ \Delta>0  

 a<0,  c=0, Δ>0a<0,\ \ c=0,\ \Delta>0  

 a>0,  c>0, Δ<0a>0,\ \ c>0,\ \Delta<0  

 a<0,  c>0, Δ>0a<0,\ \ c>0,\ \Delta>0  

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

y=x2+2x
y=-x2+2x
y=-x2-2x
y=x2-2x

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

a<0; c>0; Δ>0
a<0; c<0; Δ>0
a>0; c<0; Δ<0
a>0; c>0; Δ<0

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

a<0; c>0; Δ<0
a<0; c<0; Δ<0
a>0; c<0; Δ>0
a>0; c>0; Δ>0

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