equazioni di secondo grado grafici
Quiz
•
Mathematics
•
9th Grade
•
Practice Problem
•
Hard
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29 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Per quali valori dell'incognita x è soddisfatta la seguente equazione:
x2 - 5 x = 0
0; 5
2; 4
0; 8
-1; +1
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Una delle soluzioni dell'equazione
2x2 - 5x + 3 = 0
è 1, l'altra soluzione è:
5/2
2/5
3/2
- 3/2
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
osserva il grafico e individua la risposta corretta
l'equazione della parabola è con a>0 b=0
l'equazione della parabola è con a<0 ; b=0
l'equazione della parabola è con a<0 c=0
l'equazione della parabola è con a>0 b e c diversi da zero
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
indica il segno di a,b,c, nell'equazione y=ax2+bx+c rappresentata
a<0 ; c=0
a>0 b=0,
a>0 ; c=0
a<0,b=0
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
indica il segno di a,b,c, del discriminante Δ nell'equazione y=ax2+bx+c rappresentata
Δ=0 e c=1
Δ<0 e a>0
Δ>0 e c=1
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
indica il segno di a,b,c e del discriminante Δ nell'equazione y=ax2+bx+c rappresentata
a>0 , c=1 ; Δ<0
a>0 , c=1 ; Δ>0
a>0 , b=1 ; Δ<0
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
indica il segno di a,b,c, nell'equazione y=ax2+bx+c rappresentataa
a>0, b=0, c=4
a<0, b=0, c=4
a<0, b=4, c=0
a<0, b>0, c=4
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