Question

help pleaseeeee

Answer 1

Equation of circle centered at \( (h, k) \) with radius \(r\).
\( (x - h)^2 + (y - k)^2 = r^2 \)

Answer 2

still confused

Answer 3

Look at the graph.
What is the center of the circle?
What is the radius of the circle?

Answer 4

0,0?

Answer 5

Good.
What about the radius?

Answer 6

3

Answer 7

Good.
Now look again at the equation of a circle. You have all the information you need.

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

The center is \( (h, k) = (0, 0)\), so \(h = 0\) and \(k = 0\).
The radius is 3, so \(r = 3\).
Now we plug these values in the equation:

\((x - 0)^2 + (y - 0)^2 = 3^2\)

Now we simplify:

\(x^2 + y^2 = 3^2\)


\(x^2 + y^2 = 9\)
That's the final answer.