Practice with Circle Equations Topic Index | Algebra2/Trig Index | Regents Exam Prep Center

Solve the following problems dealing with equations of circles.

 1 Convert this equation into center-radius form.  State the coordinates of the center of the circle and its radius.

 2 State the equation of a circle in general form which has a center at (5, -3) and a radius of 9.

 3 Convert this equation into center-radius form.  State the coordinates of the center of the circle and its radius.  Graph.

 4 Write the center-radius equation of a circle with a center at (-3, -6) and passes through the point (-4, 8).

 5 Write the general equation of a circle that is tangent to the x-axis, with a center located at (4, -6).

 6 Write the center-radius equation of the circle whose graph is shown below.

 7 Write the general form equation for the circle whose graph is shown at the right.  List 6 points that lie on this circle.

 Topic Index | Algebra2/Trig Index | Regents Exam Prep Center Created by Donna Roberts