
FUNÇÕES 10ºANO
Authored by Inês Isabel Susano Gomes Mota
Mathematics
9th - 12th Grade
Used 1+ times

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18 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 10 pts
Considere a função quadrática f(x)
Sabe-se que:
O vértice da parábola tem coordenadas (2,−3)
A origem (0,0) pertence ao gráfico de f(x)
Qual das seguintes expressões representa f(x)
2.
MULTIPLE CHOICE QUESTION
5 mins • 10 pts
1. Seja uma função quadrática, de domínio R , sabe-se que:
· -2 e 4 são zeros da função;
· o coeficiente do termo de maior grau é negativo.
1.1. Qual é a equação do eixo de simetria do gráfico de f ?
x=-1
x=1
x=-2
x=2
3.
MULTIPLE CHOICE QUESTION
3 mins • 10 pts
Seja uma função quadrática, de domínio R , sabe-se que:
· -2 e 4 são zeros da função;
· o coeficiente do termo de maior grau é negativo.
A função f é:
crescente para x<1 e decrescente para x>-1
crescente para x>1 e decrescente para x<1
crescente para x<1 e decrescente para x>1
nenhuma das opções anteriores
4.
MULTIPLE CHOICE QUESTION
5 mins • 10 pts
a função tem dois zeros
a função é negativa em R
o ponto (-1,0) é o vértice do seu gráfico
-1 é o máximo da função
5.
MULTIPLE CHOICE QUESTION
3 mins • 10 pts
(-1,4)
(0,0)
(-1,2)
(1,-3)
6.
MULTIPLE CHOICE QUESTION
5 mins • 10 pts
-3 quando x=-1 e é um minimo relativo
-3 um minimo absoluto para x=1
-3 um máximo absoluto para x=1
nenhuma das anteriores
7.
MULTIPLE CHOICE QUESTION
5 mins • 15 pts
considera as funções representadas no gráfico. Sabe se que os pontos de coordenadas (0,1) e (2,-3) pertencem a g e -1 e 3 são zeros de f
As suas expressões analiticas são:
nenhuma das anteriores
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