## bnb530 2 years ago Find the polar coordinates of (-4,0) A. (0,0 degrees) B. (0,180 degrees) C. (4,180 degrees) D. None of the above

1. klimenkov

C.

2. tyteen4a03

@klimenkov Please don't give out answers without explaining. He would not be able to solve future questions like this without an explanation. To convert a Cartesian coordinate pair to a polar one (in the format $$(r, \theta)$$), use this set of formula: r = $$\sqrt{x^2 + y^2}$$ $$\theta = tan^{-1} (y/x)$$.

3. tyteen4a03

Also, remember that the tangent value may be negative. In this case, apply the four quadrant rule on the final answer.

4. klimenkov

I don't think he wants to see how to solve this. Just want an answer.

5. bnb530

I am a she not a he :)

6. tyteen4a03

@klimenkov OpenStudy's Code of Conduct states that you should not give out answers without explanations. :)

7. klimenkov

I hope you will be satisfied now. |dw:1358014518027:dw|

8. bnb530

Thanks guys!