Equations of Circles

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What is the equation of the circle ?

What are the coordinates of the center and the radius of the circle with equation:
(x - 4)² + (y - 3)² = 25 ?

• Center (4,3)
  Radius = 5 units

• Center (4,3)
  Radius = 25 units

• Center (-4,-3)
  Radius = 25 units

• Center (-4,-3)
  Radius = 5 units

The image provided is the equation of a(n)...

• circle

• ellipse

• parabola

• hyperbola

Write the standard equation of the circle with the given center and radius; center (0,0) and radius: 3

• x²+y²=4

• x²+y²=81

• x²+y²=9

What is the center of the circle with equation x² + y² = 1?

• (1, 1)

• (0, 0)

• not enough information

See Picture

• A

• B

• C

See Picture

• A

• B

• C

• D

In the equation
(x-3)²+(y-2)²=16, the center of the circle is...

• (3,2)

• (-3, -2)

• (-2, -3)

• (2, 3)