Função do 2 grau
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Função do 2 grau
Na figura, o arco AB é um arco parabólico. C e M são os pontos médios de AB( arco ) e AB( segmento de reta), respectivamente. Se AB( segmento de reta)=40, MC( segmento)=16 e MX (segmento)=5, o valor de XY (segmento) é?
![Função do 2 grau 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)
a)12
b)15
c)19
d)13/2
Gabarito letra ''b''
Dúvida: A fim de resolver a questão, eu coloquei a origem Oy passando pelo ponto A. Eu poderia colocar a origem em outro lugar?
a)12
b)15
c)19
d)13/2
Gabarito letra ''b''
Dúvida: A fim de resolver a questão, eu coloquei a origem Oy passando pelo ponto A. Eu poderia colocar a origem em outro lugar?
Última edição por Lukinhas26 em Sáb 15 Ago 2020, 16:57, editado 1 vez(es)
Lukinhas26- Recebeu o sabre de luz
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Data de inscrição : 07/01/2019
Idade : 42
Localização : Goiás
Re: Função do 2 grau
Tome o ponto A como origem
c=0
y=ax²+bx
0=1600a+40b
16=400a+20b
0=1600a+40b
-32=-800a-40b
-32=800a
a=-1/25
16=-400/25+20b
16=-16+20b
32=20b
b=8/5
y=-x²/25+8x/5
y=-625/25+40
y=-25+40
y=15
XY=15
Acho que o gabarito não está correto
c=0
y=ax²+bx
0=1600a+40b
16=400a+20b
0=1600a+40b
-32=-800a-40b
-32=800a
a=-1/25
16=-400/25+20b
16=-16+20b
32=20b
b=8/5
y=-x²/25+8x/5
y=-625/25+40
y=-25+40
y=15
XY=15
Acho que o gabarito não está correto
Kashinkoje- Iniciante
- Mensagens : 6
Data de inscrição : 08/08/2020
Re: Função do 2 grau
Desculpe.... Agora está certo...
Lukinhas26- Recebeu o sabre de luz
- Mensagens : 113
Data de inscrição : 07/01/2019
Idade : 42
Localização : Goiás
Medeiros- Grupo
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Data de inscrição : 01/09/2009
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Localização : Santos, SP, BR
Lukinhas26 gosta desta mensagem
Re: Função do 2 grau
Muito obrigado, mestre!
Lukinhas26- Recebeu o sabre de luz
- Mensagens : 113
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Idade : 42
Localização : Goiás
![-](https://2img.net/i/empty.gif)
» funcao do primeiro grau e segundo grau
» Função Polinomial do 2º grau (ou função quadrática) 2
» Duvida funcao.Uma funcao do 1 grau tal que f(-1) = 5 e f(3) = -3. Entao , f(0) e igual a
» Função do Segundo Grau (Função Quadrática)
» Função Polinomial do 2º grau (ou função quadrática)
» Função Polinomial do 2º grau (ou função quadrática) 2
» Duvida funcao.Uma funcao do 1 grau tal que f(-1) = 5 e f(3) = -3. Entao , f(0) e igual a
» Função do Segundo Grau (Função Quadrática)
» Função Polinomial do 2º grau (ou função quadrática)
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