2, Convert the polar equation to rectangular form and identify the graph. Support your answer by sketching the graph. Show and explain your work. r = - 4 cos 0 Answer: Cosine graph reflected over x-axis with amplitude 4 AAAAAA3. Find the derivative, if it exists, of the function at the specified point. 2 f ( x) = X - 4x + 3 at x = 1 Answer: f(1) = 1 2- 4(1) + 3=0