### Home > A2C > Chapter 9 > Lesson 9.1.2 > Problem 9-44

9-44.

Try sketching the circle. The circle to the right has a radius of 2. Try placing it on the axis so it matches the circle described in the problem. The line *y* = 3*x* has been graphed for you.

Use the coordinates of the center and the radius to write an equation in general form.

(*x* − 2)^{2} + (*y* − 6)^{2} = 4

See part (a).

(*x* − 3)^{2} + (*y* − 9)^{2} = 9

Use the eTool below to explore the problem further.

Click the link at right for the full version of the eTool: A2C 9-44 HW eTool