Question

Write the standard equation of the circle below.

Answer 1

The form is \[(x - h)^2 + (y-k)^2 = r^2\]
when \((h, k)\) is the centre of the circle, and \(r\) is the radius.


What are \(h,k,r\) for this circle ?

Answer 2

I got (x + 2)^2 + (y - 1)^2 = 9 ?

Answer 3

try again

Answer 4

\(h\) is the \(x\)-coordinate of the centre

Answer 5

(x + 1)^2 + (y - 2)^2 = 3?

Answer 6

@UnkleRhaukus Remember, \(h\) is the NEGATIVE value for \(x\)

Answer 7

If \(x\) is 5, then \(h\) is -5

Answer 8

(I think)