Question

Trouble with graph word problem.

Answer 1

@DebbieG

Answer 2

Standard form equation for a circle with center (h,k) and radius r is:

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

So you are looking for the circle that has it's center at the origin (so (h,k) is (0,0)), and a radius of r=9.

Answer 3

Thank you that makes more sense. I was thrown off since the who time in the problems we where solving triangles then a circle came out of nowhere.

Answer 4

Haha, circles are like that sometimes! ;) happy to help!