### Home > CCA2 > Chapter 3 > Lesson 3.1.3 > Problem 3-54

3-54.

Give the equation of each circle below in graphing form. 3-54 HW eTool (Desmos). Homework Help ✎.

A circle with center

and radius . Remember the general equation for a circle is

where ( *h*,*k*) is the center.A circle with center

and radius . See part (a).

A circle with equation

.Complete the squares for

and.Rearrange the equation:

______________ _______ _______

Use the eTool below to graph the equations for each part.

Click the link at right for the full version of the eTool: CCA2 3-54 HW eTool