answersLogoWhite

0

Given:

x2 + y2 - 6x + 4y = -4

We'll start by rearranging for clarity:

x2 - 6x + y2 + 4y + 4= 0

We can already get a perfect square with our y-value, so let's do that

x2 - 6x + (y + 2)2 = 0

Now to get x down to one term, you need to complete the square:

x2 - 6x + 9 + (y + 2)2 = 9

(x - 3)2 + (y + 2)2 = 32

And that gives you the answer. The circle has a center point of (3, -2), and a radius of 3.

User Avatar

Wiki User

15y ago

Still curious? Ask our experts.

Chat with our AI personalities

DevinDevin
I've poured enough drinks to know that people don't always want advice—they just want to talk.
Chat with Devin
RossRoss
Every question is just a happy little opportunity.
Chat with Ross
ViviVivi
Your ride-or-die bestie who's seen you through every high and low.
Chat with Vivi

Add your answer:

Earn +20 pts
Q: Find the center and radius of x2 plus y2-6x plus 4y equals -4?
Write your answer...
Submit
Still have questions?
magnify glass
imp