
Prerequisiti: Rette e Parabole
Authored by Sara Sabatino
Mathematics
2nd Grade

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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual è la forma esplicita dell’equazione di una retta?
y=ax^2+bx+c
ax+by+c=0
y=mx+q
y=a(x−h)^2+k
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
La retta y=2x+3 è crescente.
Vero
Falso
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Nell’equazione y=−3x+1, qual è il coefficiente angolare?
1
-3
3
0
4.
OPEN ENDED QUESTION
3 mins • 1 pt
Qual è l'intercetta sull'asse y della retta y=1/2x−4?
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5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quale tra queste è una parabola con concavità rivolta verso l’alto?
y=−x^2+2x+1
y=x^2−4x+3
y=−2x^2
y=−x+2
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
La parabola y=ax^2+bx+c ha concavità verso l’alto se:
a<0
b>0
c>0
a>0
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
La parabola y=3x^2 è simmetrica rispetto all’asse x.
Vero
Falso
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