\[y = \frac{1}{4}x^{2};\ \ \ \ y = 5x - 16.\]
\[\frac{1}{4}x^{2} = 5x - 16\ \ \ \ \ \ \ \ \ \ | \cdot 4\]
\[x^{2} - 20x + 64 = 0\]
\[D = 100 - 64 = 36\]
\[x_{1} = 10 + 6 = 16;\ \ \ \]
\[x_{2} = 10 - 6 = 4.\]
\[y_{1} = 5 \cdot 16 - 16 = 64;\ \ \]
\[y_{2} = 5 \cdot 4 - 16 = 4.\]
\[Ответ:\ графики\ пересекаются\ в\ \]
\[\ \ \ \ \ \ \ \ \ \ \ \ \ \ точках\ (16;64);\ \ (4;4).\]