
Se Liga! 9º Ano
Authored by AMANDA GROSSKOPF
Mathematics
10th Grade
Used 2+ times

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11 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Considere a função f(x)= -3x+4
Qual é a imagem(y) quando x= 2 ?
1
-2
4
-4
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Se f (x) = 3x, então se y=36 corresponde a:
33
108
39
12
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Se y= 2x - 1, então:
Se x=0 então y=0
Se x=0 então y=1
Se x=0 então y=-1
Se x=0 então y=2
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Nas figuras seguintes estão representadas correspondências entre os conjuntos A e B.
Assinale a opção que indica uma função 𝑓: 𝐴 → 𝐵.
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Considere a função afim f(x)= 2x - 3 de domínio D={-1, 0, 2, 3}
Qual é o contradomínio da função f ?
CD={-5,-3,1,3}
CD={-3,-1,1,3}
CD={-7,-3,1,2}
CD={-3,0,3,5}
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Considera a função afim f(x) = 2x - 3.
Qual é o valor de y quando x=0?
1/2
-3
0
6
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Se f(x) = -2x + 5, então qual é o valor de y quando x = 3 ?
1
7
-1
-7
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