
Quiz disequazioni

Quiz
•
Mathematics
•
12th Grade
•
Hard
Elisa Marcelli
FREE Resource
22 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Qual è il valore assoluto di -7?
-7
7
0
1
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Il valore assoluto di un numero è sempre positivo o nullo.
Vero
Falso
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Quale delle seguenti equazioni rappresenta un sistema lineare?
x + y = 5 e x^2 + y = 3
x + y = 5 e 2x - y = 3
x^2 + y^2 = 4 e x - y = 2
x^3 - y = 1 e x + 2y = 3
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Un sistema di equazioni lineari può avere una, nessuna o infinite soluzioni.
Vero
Falso
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Quale dei seguenti valori di x soddisfa l'equazione |x - 3| = 2?
x = 5
x = 1
x = 5 e x = 1
x = -5 e x = -1
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Il valore assoluto di un numero negativo è sempre negativo.
Vero
Falso
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Il sistema 2x + y = 4 e 4x + 2y = 8 ha:
Una soluzione
Nessuna soluzione
Infinite soluzioni
Non si può determinare
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