Question

PLEASE HELP!!!!!!!!! A circle is tangent to the x-axis at (5,0) and y-axis at (0,-5). Find its equation.

Answer 1

Where would the center have to be?

Answer 2

Try drawing a diagram.

Answer 3

0?

Answer 4

The picture is the trick. A rough sketch would do the job. Once you have the center, you have a formula that can be filled in.

Answer 5

My problem is I do not know how to sketch it. I am so lost in pre-calc.

Answer 6

Draw xy axes. Plot the two points of tangency. Those points are at the ends of radii of the circle.

Answer 7

Circle?

Answer 8

Oh thank you!! I get it from here!

Answer 9

Pictures tell so much.