
VERIFICA
Authored by Vincenzo D'Auria
Mathematics
3rd Grade

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8 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
IN UN EQUAZIONE DI 2 GRADO (ax2 +bx + c =0), QUANDO HO IL Δ<0, CHE SOLUZIONI HO:
2 SOLUZIONI
1 SOLUZIONE
3 SOLUZIONI
IMPOSSIBILE
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
IN UN EQUAZIONE DI 2 GRADO (ax2 +bx + c =0), QUANDO HO IL Δ>0, CHE SOLUZIONI HO:
1 SOLUZIONE
2 SOLUZIONI
3 SOLUZIONI
IMPOSSIBILE
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
IN UN EQUAZIONE DI 2 GRADO (ax2 +bx + c =0), DUE SOLUZIONI COINCIDENTI SONO:
2 SOLUZIONI DIVERSE
2 SOLUZIONI UGUALI
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
IN UN DISEQUAZIONE DI 2 GRADO, SE a>0, LA CURVA HA:
CONCAVITA' VERSO IL BASSO
⋂
CONCAVITA' VERSO L'ALTO
⋃
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
IN UNA DISEQUAZIONE DI 2 GRADO, SE a>0, LA FORMA E': ax2 +bx + c > 0, PRENDIAMO I PIU' (LA PARTE DELLA PARABOLA AL DI SOPRA DELL'ASSE X)?
SI
NO
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
IN UN DISEQUAZIONE DI 2 GRADO, SE a>0, LA FORMA E': ax2 +bx + c > 0, ED HA IL Δ<0. IL RISULTATO E'?
SEMPRE
2 SOLUZIONI
1 SOLUZIONE
MAI
7.
OPEN ENDED QUESTION
3 mins • 1 pt
SVOLGI LE SEGUENTI EQUAZIONI DI 2 GRADO:
A) +1x2 +3x -4 =0
B) +1x2 +2x +5 =0
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