top of page
LAKE BRANTLEY
HIGH SCHOOL
Equations of Circles MA.912.G.6.6
Two-Dimensional
Student need to know...
The equation of a circle in the coordinate plane.
-
The benchmark will be assessed using MC (Multiple Choice) items.
-
Items may have given information including the center and the radius of a circle and request the equation.
-
Items may give the equation of a circle and request the center and the radius.
Example One
Circle Q has a radius of 5 units with center Q(3.7, -2). Which of the following equations defines circle Q?
-
(x + 3.7)2 + (y - 2)2 = 5
-
(x + 3.7)2 + (y - 2)2 = 25
-
(x - 3.7)2 + (y + 2)2 = 5
-
(x - 3.7)2 + (y + 2)2 = 25
Example Two
Equation of a Circle
Given Radius and Center
bottom of page