Question

Please help! I'm so lost!

What is the value of a for the following circle in general form?

(Attaching picture below)

Answer 1

Remember to use:
(x-h)^2 + (y-k)^2 = r^2
Where (h, k) is the center, and r is the radius.

Answer 2

Plug in these values correctly, then simplify the equation into the form they showed you.

Answer 3

It looks like (h, k) = (3, -1) and r = 4.

So simplify (x - 3)^2 + (y + 1)^2 = 4^2