What is the largest value of θ that a petal defined by r = sin 3 θ and beginning at θ = 0 sweeps out?

The first one, i believe, would be correct. all the others have one thing in common, and that's that they have repeating numbers. in the second one, x and y have repeating 6's and 3's, and in the third, x and y have repeating 6's as well. in the last one, there are repeating 3's. the first one has no repeating numbers.

The answer will be y=-5+0 because the slope is -5 and the it has to go through y-axis 0