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Give the center and radius in each of the following circles.Circle a

Give the center and radius in each of the following circles.Circle a-example-1
User Ray
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ANSWER

• Center: (0, 0)

,

• Radius: 3

Step-by-step explanation

The equation of a circle has the form,


(x-h)^2+(y-k)^2=r^2

Where the center is (h, k) and r is the radius of the circle.

For circle a, we have the equation,


x^2+y^2=9

So, the center is (0, 0) and the radius is 3, since 3² = 9.

User Doc Brown
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