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Module 20 - Circle
How to graph out circles
Question | Answer |
---|---|
(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 |