198k views
3 votes
The graph of r = -10 cos θ has which of the following characteristics?

Answer choices are listed below.

The graph of r = -10 cos θ has which of the following characteristics? Answer choices-example-1

1 Answer

8 votes

Explanation:

If we convert


r = - 10 \cos(x)

to a Cartesian equation,


{r}^(2) = - 10 r \: \cos(x)


{x}^(2) + {y}^(2) = - 10x


{x}^(2) + 10x + {y}^(2) = 0


{x}^(2) + 10x + 25 + {y}^(2) = 25


(x + 5) {}^(2) + {y}^(2) = 25

So we have a circle with center (-5,0), with a diameter of 10.

User Vinay Rao
by
8.6k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories