
Função
Authored by ELEN FERREIRA
Mathematics
1st Grade

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6 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Considere a função f(x)= -3x+4
Qual é a imagem do objeto 2 ?
1
4
-2
-4
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Considere a função afim f(x)= 2x - 3 de domínio D={-1, 0, 2, 3}
Qual é o contradomínio da função f ?
D'={-5,-3,1,3}
D´={-7,-3,1,2}
D'={-3,-1,1,3}
D'={-3,0,3,5}
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Um entregador cobra R$30,00 por dia de trabalho mais R$2,50 por entrega realizada.
Quantos reais ganhará esse entregador se em um dia fizer 50 entregas?
R$ 100,00
R$ 155,00
R$ 225,00
R$ 230,00
R$ 300,00
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Se f (x) = 3x, então f (36) corresponde a:
a) 33
b) 39
c) 108
d) 12
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
20%
25%
40%
45%
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Maria comprou um vestido à vista para ganhar 5% de desconto. Se o vestido custava R$ 60,00, quanto ela pagou pelo vestido?
R$ 45,00
R$ 47,00
R$ 55,00
R$ 57,00
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