Let the solutions curve of the differential equation: \( x \dfrac{dy}{dx}-y=\sqrt{y^{2}+16x^{2}}, \ y(1)=3 \) be \( y=y(x) \). Then \( y(2) \) is equal to:
\( 15 \)
\( 11 \)
\( 13 \)
\( 17 \)