Respuesta:
Explicación paso a paso:
[tex]\begin{matrix}\texttt{Funci\'on}&\texttt{Color de la gr\'afica}&\texttt{Ecuaci\'on}&\texttt{Soluciones}\\\\y=x^{2}-3x&\texttt{Azul}&x^{2}-3x=0&x_{1}=0\,\,,x_{2}=3\\\\y=2x^{2}+x&\texttt{Verde}&2x^{2}+x=0&x_{1}=0\,\,,x_{2}=-\frac{1}{2}=-0.5\\\\y=x^{2}+2x&\texttt{Rojo}&x^{2}+2x=0&x_{1}=0\,\,x_{2}=-2\\\\y=x^{2}-2x&\texttt{Cyan}&x^{2}-2x=0&x_{1}=0\,\,,x_{2}=2\end{matrix}[/tex]
