Equation of a Circle
Presentation
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Mathematics
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10th Grade
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Practice Problem
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Medium
Standards-aligned
Alicia Brunette
Used 2K+ times
FREE Resource
8 Slides • 12 Questions
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Equation of a Circle
Learning Target: I can write the equation of a circle and graph a circle from it's equation.
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Multiple Choice
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What if the center isn't (0,0)?
Think back to tranformations of parabolas, we used the point (h,k) to talk about our vertex.
We can use the same point to talk about the center of our circle.
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Open Ended
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Writing Equations of Circles
We can write equations of circles from their graphs.
Locate the center of the circle. This usually marked with a dot
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Multiple Choice
What is the center of this circle?
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Writing Equations of Circles
The other piece of information we need is the radius.
You can calculate the radius by counting the number of units from the center to any point on the circle.
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Multiple Choice
What is the radius of this circle?
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Writing Equations of Circles
Now we can place our values into our equation
Then simplify
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Multiple Choice
What is the equation of the circle?
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Multiple Choice
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Multiple Choice
(x)2+ (y-6)2=9
Equation of a Circle
Learning Target: I can write the equation of a circle and graph a circle from it's equation.
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