Question

Can someone explain how to do this?

Answer 1

@Shadow

Answer 2

I'm thinking its A or D but I'm not sure

Answer 3

The equation of a circle is \((x - h)^2 + (y - k)^2 = r^2\) where \((h,k)\) is the center of the circle and \(r\) is the radius.

Answer 4

Oh okay

Answer 5

Sorry my laptop is majorly lagging rn. So as you said (x−h)2+(y−k)2=r2 how do you find x and y? Thats really what I need help with.

Answer 6

@lexxii, there are two things you need to do for this:

1. Find the coordinates of the center point of the circle.
2. Find the length of the radius.

Answer 7

The center points are (-4,2) I got that part

Answer 8

And the radius is 4 correct?

Answer 9

(-4,2) is the center of which point Q or P? I don't see (-4,2) as the center point for either of them.

Answer 10

For P

Answer 11

I think I got it, it is D correct? @Hero

Answer 12

Yes you are. He barged in though.

Answer 13

Okay thank you :)

Answer 14

Welcome. <3