r = -6 sinθ

Part I: Multiply both sides of this equation by r and use the fact that to rewrite this equation in terms of x and y.

I got x^2 + y^2 = -6y

Part II: Complete the square to produce the final equation.

Part III: Using only your answer to part II, what shape does this graph make?

Question

r = -6 sinθ

Part I: Multiply both sides of this equation by r and use the fact that  to rewrite this equation in terms of x and y.

I got x^2 + y^2 = -6y

Part II: Complete the square to produce the final equation.

Part III: Using only your answer to part II, what shape does this graph make?

anonymous · Answer

So you want to move 6y over to the left side to obtain:

x^2 + y^2 + 6y = 0

Then complete the square for the y variables.

To do this, you'd take 6, divide it by 2, then square the result. You should end up with 9.

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