Chapter 10, Problem 45RE

To determine

To calculate: The values of $\frac{dy}{dx}$ and $\frac{d^{2}y}{d{x}^2}$, the slope and concavity for the parametric equations: $x=10\cos \theta$, $y=10\sin \theta$ and the parameter is $\theta =\frac{\pi }{4}$.