Question

What is the center of the circle represented by this equation?

x2 + (y + 9)2 = 25

Answer 1

Hello!

The equation for a circle is


`(x - h)^(2) + (y - k)^(2) = r^(2)`

(h, k) is the center

You find what numbers make the equation

Since x is not subtracted from anything h = 0

Since k is positive k is the negative of that number

The equation is
`(x - 0)^(2) + (y - -9)^(2) = 25`

The center is (0, -9)

Hope this helps!