Mathematics

Problem

For the curve defined implicitly by

x^{2}+y^{2}=25

, what is the value of

\dfrac{d^{2}y}{dx^{2}}

at the point

(3,4)

? a)

-\dfrac{25}{27}

\dfrac{25}{64}

-\dfrac{25}{64}

-\dfrac{25}{16}