Find $\frac{d y}{d x}$ At the Given Point $x^{2}+3 y^{2}=13 ;(1,2)$ A) $-\frac{1}{6}$

Multiple Choice

Find $\frac{d y}{d x}$ at the given point.
- $x^{2}+3 y^{2}=13 ;(1,2)$

A) $-\frac{1}{6}$
B) $\frac{1}{3}$
C) $\frac{1}{6}$
D) $-\frac{1}{3}$