Question

Determinar a função f(x)= ax²+bx+c, referente a essa parábola. (-3,0) (25,0) (0,35)

Answer 1

Só resolver esse sistems

$\begin{Bmatrix}f(-3)&\Rightarrow&(-3)^2a-3b+c&=&0\\f(25)&\Rightarrow&25^2a+25b+c&=&0\\f(0)&\Rightarrow&0^2a+0b+c&=&35\end{matrix}$

$f(x)=-\frac{42}{9}*x^2+\frac{924}{90}*x+35$