15.11. You are given the equation in polar coordinates r = 1 + 2cose a. What are the parametric equations for this curve: x = x(0) and y = y(0) b. The graph of this equation using Desmos.com is seen on the next page. Plot the point corresponding to 0 = x. Label as P on the graph. Show that the graph has a vertical tangent line at 0 = it by computing the derivative C. Find the slope of the tangent line seen below. HELP: The point on the graph lies on a circle or radius of 1. 1TW/6/