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Module 20-The circle
Question | Answer |
---|---|
(___)^2+(y-k)=r^2 Whats missing? | x-h |
The center of a circle is what from the formula? | (h,k) |
(x-h)^2+(y-k)^2=r^2 is in what form? | Standard |
The radius does what when put into standard form? | Squareroot |
(x-h)^2+(___)^2=r^2 whats missing? | y-k |
how would you write x^2+y^2=4 into standard form? | (x-0)^2+(y-k)^2=r^2 |
How do you find the equation of a circle with center (-7,3) and a radius of 10. | (x+7)^2+(y-3)^2=100 |
What is a circle? | a set of all points in a plane that are the same distance from a fixed point called the center. |
What is the distance from the center? | The radius |
What does (x,y) represent? | any point on the circle |