As coordenadas do vértice da função y=x² -4x + 4 são :
a) ( -1, 4)
b) ( 2, 0)
c) ( -1, 1 )
d) ( 1, 0 )
Respostas
respondido por:
5
Boa tarde!
Solução!
![a=1\\\\\
b=-4\\\\\
c=4\\\\\\\\
x_{v}= \dfrac{b}{-2a} \\\\\\
x_{v}= \dfrac{-4}{-2.1} \\\\\\\\\
x_{v}= \dfrac{-4}{-2} \\\\\\\\\
\boxed{x_{v}=2}](https://tex.z-dn.net/?f=a%3D1%5C%5C%5C%5C%5C%0Ab%3D-4%5C%5C%5C%5C%5C%0Ac%3D4%5C%5C%5C%5C%5C%5C%5C%5C%0A%0A%0Ax_%7Bv%7D%3D+%5Cdfrac%7Bb%7D%7B-2a%7D+%5C%5C%5C%5C%5C%5C%0Ax_%7Bv%7D%3D+%5Cdfrac%7B-4%7D%7B-2.1%7D+%5C%5C%5C%5C%5C%5C%5C%5C%5C%0Ax_%7Bv%7D%3D+%5Cdfrac%7B-4%7D%7B-2%7D+%5C%5C%5C%5C%5C%5C%5C%5C%5C%0A+%5Cboxed%7Bx_%7Bv%7D%3D2%7D+ "a=1\\\\\
b=-4\\\\\
c=4\\\\\\\\
x_{v}= \dfrac{b}{-2a} \\\\\\
x_{v}= \dfrac{-4}{-2.1} \\\\\\\\\
x_{v}= \dfrac{-4}{-2} \\\\\\\\\
\boxed{x_{v}=2}")
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Solução!
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Bons estudos!
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