
Função Logaritmica
Authored by FRANCISCO VIEIRA
Mathematics
12th Grade
Used 10+ times

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8 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual a representação gráfica da função y = log (2x - 10)
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O gráfica ao lado foi obtida a partir da translação da função y = log2 x. Qual a função ele representa?
f(x) = log2 (x + 3)
f(x) = log2 (x - 3)
f(x) = log4 x
f(x) = 4x
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Considere a função f(x) = log4 x + 3 definida de ℝ+* → ℝ.
Determine a representação gráfica da função.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a função inversa de f(x) = 4x
f-1(x) = log4 x + 1
f-1(x) = x2 + 3x + 2
f-1(x) = x4
f-1(x) = log4 x
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Analisando o gráfico da função f(x) = loga (x - 2), a única alternativa correta que expressa o valor de a é:
A base deve ser diferente de 1
O gráfico é decrescente logo "a" deve estar entre 0 e 1
A base deve ser maior que zero
O gráfico é crescente logo "a" deve ser maior que 1
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Determine o Domínio das funçôes abaixo
a) y = log4 (2x - 4)
b) log0,1 (7x +28)
a) x > 2
b) x > - 4
a) x > 3
b) x < - 1
a) x > 7/3
b) x < 2
a) x > 1
b) x < - 4
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Durante os estudos sobre o crescimento de uma árvore foi possível modelar o crescimento dela pela função A(t) = 1 + log3 (5 + t), em que t é o tempo em anos e A(t) é uma altura em metros. Sendo assim, podemos afirmar que a altura dessa árvore após 4 anos será
2,5 metros
3 metros
9 metros
11 metros
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