
Funções
Authored by Tiago Andrade
Mathematics
9th Grade
CCSS covered
Used 15+ times

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24 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Os valores dos serviços prestados por profissionais, como: eletricistas, encanadores, e outros, quase sempre são compostos por uma taxa fixa e mais um valor por hora de trabalho. Um eletricista, que cobra uma taxa de 23 reais pela visita e mais 32 reais por hora de trabalho, receberá por 5 horas trabalhadas um total de:
R$ 192,00
R$ 226,00
R$ 215,00
R$ 183,00
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Um instalador de linhas telefônicas recebe um salário base de R$ 622,00 e R$ 8,00 por cada instalação. Considerando x a quantidade de linha telefônica instalada, a função f(x) que expressa o salário mensal desse instalador é:
f(x) = 622x + 8
f(x) = 8x + 622
f(x) = 8x
f(x) = 622 − 8x
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
O plano cartesiano é composto pelos eixos do x e y. Onde os mesmos também podem ser chamados respectivamente de:
Eixo das aboliças e eixo das ordenadas
Eixos das abscissas e eixo das orientadas
Eixo das abscissas e eixo das ordenadas
Eixo das absçolas e eixo das ordenadas
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
O gráfico da função f(x) = 2 é representado por:
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Na função y = -3x + 5:
a = 3x e b = 5
a = 3 e b = 5
a = b
a = -3 e b = 5
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
De acordo com o diagrama de flechas, pode-se afirmar que:
É uma função
Não é uma função
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
f(x) significa o mesmo que
x
y
f
a
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