Writing Equations of a Circle

Front

What is the general equation of a circle?

Back

Tags

CCSS.HSG.GPE.A.1

Front

Back

Tags

CCSS.HSA-REI.B.4B

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Back

The constant term needed is 16, since half of 8 is 4, and 4 squared is 16.

Tags

CCSS.HSA-REI.B.4B

Front

Write the equation of a circle with center at (0, 0) and radius 4.

Back

Tags

CCSS.HSG.GPE.A.1

Front

Back

The center of the circle is (-3, 2).

Tags

CCSS.HSG.GPE.A.1

Front

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

Back

Tags

CCSS.HSG.GPE.A.1

Front

Back

Tags

CCSS.HSG.GPE.A.1

Front

Back

Tags

CCSS.HSA-REI.B.4B

Front

What is the significance of the center in the equation of a circle?

Back

The center (h, k) represents the point around which the circle is drawn, and it is the midpoint of the circle.

Tags

CCSS.HSG.GPE.A.1

Front

Write the general equation of a circle with center at (-4, 1) and radius 3.

Back

Tags

CCSS.HSG.GPE.A.1