Consider 𝑓𝜃=2+4cos𝜃. Let's analyze where the relationship is positive vs negative and increasing vs decreasing in order to graph
𝑟=𝑓𝜃 in polar. Guess the shape of the polar graph.
Over what interval is 𝑟…
Positive and increasing?
Positive and decreasing?
Negative and increasing?
Negative and decreasing?