
Generalidade de funções
Authored by Sílvia Machado
Mathematics
10th Grade
Used 3+ times

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59 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Sejam A={1, 2, 3} e B={4, 5} dois conjuntos.
Qual dos seguintes conjuntos é o gráfico de uma função de A em B?
G={(1, 4), (2, 5)}
G={(1, 4), (2, 4), (3, 4)}
G={(4, 1), (5, 2)}
G={(1, 4), (1, 5), (2, 4), (2,5), (3,4) }
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Sejam A={a, b, c} e B={4, 5, 7, 9} dois conjuntos.
Qual dos seguintes conjuntos é o gráfico de uma função injetiva de A em B?
G={(a, 4), (b, 4), (c, 5)}
G={(a, 4), (b, 4), (c, 4)}
G={(a, 4), (b, 7), (c, 5)}
G={(a, 4), (b, 9), (c, 5), (a,7)}
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Sejam A={a, b, c, d} e B={4, 5, 7, 9} dois conjuntos.
Qual dos seguintes conjuntos é o gráfico de uma função sobrejetiva?
G={(a, 4), (b, 4), (c, 4), (d,4)}
G={(a, 5), (b, 4), (c, 5), (d,7)}
G={(a, 4), (b, 7), (c, 5), (d, 9)}
G={(a, 4), (b, 9), (c, 5), (a,7)}
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
São ambas injetivas.
f é injetiva e g é sobrejetiva.
f não é injetiva e g é injetiva.
f é sobrejetiva e g não é injetiva.
5.
MULTIPLE CHOICE QUESTION
3 mins • 2 pts
6.
MULTIPLE CHOICE QUESTION
3 mins • 2 pts
7.
MULTIPLE CHOICE QUESTION
5 mins • 2 pts
ℝ
ℝ\{2}
ℝ\{-2}
ℝ\{5}
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