Circles Standard form of a circle: Notice the sign change. When pulling the numbers out of the equation to get the center, change the signs!

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Presentation transcript:

Circles Standard form of a circle: Notice the sign change. When pulling the numbers out of the equation to get the center, change the signs!

Write the equation of a circle whose center is (3,-4) with a radius of 7. Write the equation of a circle whose center is (0,10) with a radius of 3. Write the equation of a circle whose center is (0,0) with a radius of.

Page 1 Plug in points until you find one that does not equal 25.

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Homework Pages 1-2 #1,2,4,6,9,11,12,15, 16,17