
Função Afim
Authored by Isabel Dias
Mathematics
8th Grade
Used 1+ times

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15 questions
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1.
MULTIPLE SELECT QUESTION
45 sec • 10 pts
Selecione todas as expressões algébricas de uma função afim:
2.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
-5
-2
2
3
Answer explanation
O declive de uma reta é o coeficiente de x. Portanto, o declive da reta y=3x-5 é 3.
3.
DRAW QUESTION
3 mins • 10 pts
4.
FILL IN THE BLANK QUESTION
30 sec • 10 pts
Answer explanation
O valor correspondente à ordenada na origem é b na expressão algébrica 'kx+b'. Portanto, a resposta é 3.
5.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
6
8
10
12
Answer explanation
Substituindo x=3 na função f(x)=2x+4, obtemos f(3)=2x3+4=6+4=10. Assim, o valor é 10.
6.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
7
8
9
10
Answer explanation
Substituindo x=2 na equação y=5x-3, obtemos y=5x2-3=10-3=7. Portanto, o valor de y quando x=2 é 7.
7.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
0
2
4
6
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