
Funções
Authored by Francisco Mendes
Mathematics
10th Grade
Used 7+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A função seguinte é classificada como:
Injetora
Sobrejetora
Bijetora
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual a função do gráfico?
y= -x - 2
y= x + 2
y= -x + 2
y= x - 2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A função representada no gráfico a seguir é classificada como:
Inversa
Composta
Quadrática
Afim
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é o conjunto imagem da função a seguir?
{0, 1, 4, 8}
{0, 5, 10, 20, 40}
{0, 5, 20, 40}
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O coeficiente angular é linear da função a seguir:
y = 2x + 4
a = ?
b = ?
a = -4 b = 2
a = 4 b = 2
a = 2 b = 4
a = -2 b = 4
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Um encanador cobra pela visita e por hora de trabalho.
O valor cobrado a vista é 40 reais, já o valor por hora de trabalho é 20 reais.
A expressão que indica o valor que deve ser pago (p) em função das horas (h) necessárias à execução do serviço é:
p(h) = 40h
p(h) = 60h
p(h) = 20 + 40h
p(h) = 40 + 20h
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Uma função linear é crescente quando:
a > 0
a < 0
a = 0
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