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Respuesta dada por:
11
Para calcular el vértice usa la formula ![(x,y)=(\frac{-b}{2a},\frac{-(b)^2}{4a}+c) (x,y)=(\frac{-b}{2a},\frac{-(b)^2}{4a}+c)](https://tex.z-dn.net/?f=%28x%2Cy%29%3D%28%5Cfrac%7B-b%7D%7B2a%7D%2C%5Cfrac%7B-%28b%29%5E2%7D%7B4a%7D%2Bc%29)
7)
![x=\frac{-b}{2a}= \frac{-3}{2*(2)} = \frac{-3}{4}=-0.75 x=\frac{-b}{2a}= \frac{-3}{2*(2)} = \frac{-3}{4}=-0.75](https://tex.z-dn.net/?f=x%3D%5Cfrac%7B-b%7D%7B2a%7D%3D+%5Cfrac%7B-3%7D%7B2%2A%282%29%7D+%3D+%5Cfrac%7B-3%7D%7B4%7D%3D-0.75+)
![y= \frac{-b^2}{4*a} + c y= \frac{-b^2}{4*a} + c](https://tex.z-dn.net/?f=y%3D+%5Cfrac%7B-b%5E2%7D%7B4%2Aa%7D+%2B+c+)
![y= \frac{-3^2}{4*(2)} + (-1)= \frac{-9}{8}-1= \frac{-17}{8}=-2.125 y= \frac{-3^2}{4*(2)} + (-1)= \frac{-9}{8}-1= \frac{-17}{8}=-2.125](https://tex.z-dn.net/?f=y%3D+%5Cfrac%7B-3%5E2%7D%7B4%2A%282%29%7D+%2B+%28-1%29%3D+%5Cfrac%7B-9%7D%7B8%7D-1%3D+%5Cfrac%7B-17%7D%7B8%7D%3D-2.125)
![(x,y)=(-075,-2.125) (x,y)=(-075,-2.125)](https://tex.z-dn.net/?f=%28x%2Cy%29%3D%28-075%2C-2.125%29)
8)
![x=\frac{-b}{2a}= \frac{-4}{2*(-1)} = \frac{-4}{-2}=2 x=\frac{-b}{2a}= \frac{-4}{2*(-1)} = \frac{-4}{-2}=2](https://tex.z-dn.net/?f=x%3D%5Cfrac%7B-b%7D%7B2a%7D%3D+%5Cfrac%7B-4%7D%7B2%2A%28-1%29%7D+%3D+%5Cfrac%7B-4%7D%7B-2%7D%3D2+)
![y= \frac{-b^2}{4*a} +c y= \frac{-b^2}{4*a} +c](https://tex.z-dn.net/?f=y%3D+%5Cfrac%7B-b%5E2%7D%7B4%2Aa%7D+%2Bc+)
![y= \frac{-4^2}{4*(-1)} = \frac{-16}{-4}+0=4 y= \frac{-4^2}{4*(-1)} = \frac{-16}{-4}+0=4](https://tex.z-dn.net/?f=y%3D+%5Cfrac%7B-4%5E2%7D%7B4%2A%28-1%29%7D+%3D+%5Cfrac%7B-16%7D%7B-4%7D%2B0%3D4+)
![(x,y)=(2,4) (x,y)=(2,4)](https://tex.z-dn.net/?f=%28x%2Cy%29%3D%282%2C4%29)
7)
8)
Adjuntos:
![](https://es-static.z-dn.net/files/dc6/e7ac73375ab7c6373242ce0843f0ffbd.png)
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