
Material de estudo de Emilly
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Mathematics
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10th Grade
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Practice Problem
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josefh marques
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11 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Observe as relações entre os conjuntos P e Q apresentadas abaixo.
Dentre essas relações, qual representa uma função de domínio P e contradomínio Q?
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Observe abaixo o gráfico da função f: [– 5, 3] → IR.
O conjunto imagem dessa função f é o intervalo
A) [– 5, 3].
B) [– 5, 5].
C) [– 3, 3].
D) [– 3, 5].
E) [0, 5].
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Observe o gráfico da função f: [– 8, 4] → [– 1, 4] representado abaixo.
A função f é estritamente crescente
A) no intervalo [– 4, – 2].
B) no intervalo [– 1, 4].
C) nos intervalos [– 8, – 6] e [– 2, 1].
D) nos intervalos [– 6, – 3] e [3, 4].
E) nos intervalos [– 3, – 2] e [1, 3].
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Observe, no plano cartesiano abaixo, o segmento de reta que representa o gráfico de uma função de 1º grau restrita a um intervalo.
Qual é o intervalo que representa o domínio dessa função?
A) [– 2, 4].
B) [– 2, 3].
C) [– 2, 1].
D) [– 1, 1].
E) [– 1, 2].
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Considere a função f: IR → IR, cuja lei de formação é dada por f(x) = – 6x + 6.
O gráfico dessa função está representado em
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Observe parte do gráfico de uma função polinomial de 1º grau.
Qual o valor da raiz dessa função?
(A) –6
(B) –4
(C) –2
(D) 3
(E) 4
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Seja a função f(x) = -6x + 900.
A raiz dessa função é
(A) -150.
(B) 0.
(C) 150.
(D) 900.
(E) 906.
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