Circle Equations

Front

What is the standard form of a circle's equation?

Back

Front

How do you find the radius from the equation of a circle?

Back

Front

What is the center of the circle in the equation (x-5)²+(y+3)²=36?

Back

The center of the circle is (5, -3).

Front

What is the radius of the circle in the equation (x+2)²+(y-1)²=49?

Back

The radius of the circle is 7.

Front

How do you convert the general form of a circle's equation to standard form?

Back

Front

What does the equation (x-1)²+(y-2)²=25 represent?

Back

This equation represents a circle with center (1, 2) and radius 5.

Front

In the equation (x+4)²+(y-3)²=16, what is the radius?

Back

The radius is 4.

Front

What is the significance of the number on the right side of the equation in a circle's equation?

Back

Front

How do you identify the center of a circle from its equation?

Back

Front

What is the radius of the circle given by the equation (x-6)²+(y+1)²=81?

Back

The radius of the circle is 9.