
circonferenza
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Mathematics
9th - 10th Grade
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16 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Qual è l'equazione della circonferenza della figura?
x2 + y2 - 8x +8x = 16
x2 + y2 = 16
x2 + y2 - 2x +2x = 4
x2 + y2 = 4
x2 + y2 + 16 = 0
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Qual è l'equazione della circonferenza della figura?
(x - 3)2 + y2 = 3
(x + 3)2 + y2 = 9
x2 +(y - 3)2 = 9
(x - 3)2 + y2 = 9
x2 + y2 = 9
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Qual è tra le equazioni seguenti quella di una circonferenza che ha il centro sul’ asse delle ascisse?
x2 + y2 +3x + 3y – 2 = 0
x2 + y2 + 5y – 2 = 0
x2 + y2 +3x – 6 = 0
x2 + y2 + 5x - 5y = 0
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Qual è tra le equazioni seguenti quella di una circonferenza che ha il centro nel punto C(3;-6)?
3x2 - 6y2 + x + 3y – 2 = 0
x2 + y2 + 3x - 6y – 2 = 0
x2 + y2 - 6x +12y – 6 = 0
x2 + y2 + 5x - 5y = 0
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Quale affermazione sulla circonferenza
4x2 + 4y2=1
è falsa?
Ha centro nell'origine degli assi
Il raggio è 1
Passa per il punto P(0; 0,5)
Passa per il punto P(-0,5; 0)
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
L'equazione della circonferenza di centro C(6;3) e tangente alla retta di equazione 5x+12y-1=0 è:
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
l'equazione della circonferenza in figura è
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