Use your grapher to determine which of the graphs matches the polar equation r = 4 cos 3θ.

Question

anonymous · Answer

do you have a Graphing calculator?

anonymous · Answer

no :( @OpenSessame

anonymous · Answer

Can you show me the graphs and help you out cause i have one:)

anonymous · Answer

attachment

anonymous · Answer

@OpenSessame those are my options

anonymous · Answer

I wont tell you which one it is but i will tell you this....
Presumably you want the graph of r = 4cos(3Θ). Now cos(3Θ) passes through 1 arch of the cosine curve as Θ varies from -30 degrees to 30 degrees. Since the height of the cosine curve (times 4 because of the 4 in your equation) corresponds to the distance the curve is from the origin, this means there will be a loop starting out at the origin, and extending 4 units to the right, and it will lie between -30 deg and +30 degrees.