7.1 Equation of Circles

Front

What is the standard equation of a circle?

Back

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CCSS.HSG.GPE.A.1

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Back

This equation represents a circle with center (3, 2) and radius 4 units.

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CCSS.HSG.GPE.A.1

Front

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

Back

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CCSS.HSG.GPE.A.1

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Back

The center of the circle is (-4, 2).

Tags

CCSS.HSG.GPE.A.1

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Back

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CCSS.HSG.GPE.A.1

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Back

The number on the right side represents the square of the radius of the circle.

Tags

CCSS.HSG.GPE.A.1

Front

If the radius of a circle is 3, what is the equation of the circle centered at (1, -1)?

Back

Tags

CCSS.HSG.GPE.A.1

Front

Back

The radius is 3 units.

Tags

CCSS.HSG.GPE.A.1

Front

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

Back

Tags

CCSS.HSG.GPE.A.1

Front

What is the equation of a circle with center (0, 0) and radius 5?

Back

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CCSS.HSG.GPE.A.1