Question 16
A curve $C$ has equation $y = \dfrac{9}{2x - 5} + 2x - 5$.
**(b)** (In part (a) you found that the stationary points are $(1, -6)$ and $(4, 6)$.)
Find $\dfrac{d^2y}{dx^2}$ and hence determine the nature of each stationary point.
**(b)** (In part (a) you found that the stationary points are $(1, -6)$ and $(4, 6)$.)
Find $\dfrac{d^2y}{dx^2}$ and hence determine the nature of each stationary point.
