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Toppunket for andengrads ligningerEdit

400px-Andengradsligning.png


For at regne toppunktet ud i en andengrads ligning skal man bruge følgende ligning:

1. kordinat: T= - \frac{b}{2\cdot a}


2. kordinat: T= - \frac{d}{4\cdot a}



Eksempel: f(x)=  4x^2 +4 +2    
d= 6^2 -4\cdot4\cdot2 d= 4

T= \frac{-6}{2\cdot4} - \frac{4}{4\cdot4}

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