Polar coordinates can be used to determine the sensitivity of sound picked up by microphones. The curve of a polar equation can be used to determine what direction the sounds will be heard and spoken into a microphone. The sound pickup pattern of the microphone below (called a cardioid microphone) is modeled by the polar equation r = 3 + 3 cos (0), where Irimeasures how sensitive the microphone is to sounds coming from angle 0. Complete the table to identify specific coordinates (r, 0) and sketch the graph of the model. You may round values of r to the nearest tenth. CE SETE SIL AT Oo.. Undo Clear All 0 0 2m r