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Module 20 - Circle

How to graph out circles

QuestionAnswer
(x-4)^2 + (y+7)^2 = 4 Where would you plot the center for this circle equation? (4, -7)
(x-4)^2 + (y+7)^2 = 4 What would be the radius for this circle equation? 2
In what direction would you plot the value of the radius to successfully create your circle? All directions
How do you find the center of the circle in any given circle equation? Take the opposite of h and k.
How do you find the radius of the circle in any given equation? Find the square root of r,
How would you write out the equation if given the center was (-5,3) and the radius was 4? (x+5)^2 + (y-3)^2 = 16
How would you write out the equation if given the center was (2, -2) and the radius was 5? (x-2)^2+(y+2)^2=25
(x-5)^2+(y+1)^2=1 What would be the radius for this circle equation? 1
(x-12)^2+(x+7)^2=9 Where would you plot the center for this circle equation? (12, -7)
(x+6)^2+(x-6)^2=49 What would be the radius for this circle equation? 7
Created by: 965378546915505