You can
put this solution on YOUR website! Give the equation for the circle with center
C(3,-2) and radius 4. Thanks!
You just have to learn the equation
(x-h)² + (y-k)² = r²
Where the center = (h,k) = (3,-2)
Substitute 3 for h and -2 for k and 4 for the radius r.
Then you have
(x-3)² + (y-(-2))² = 4²
You can simplify
(x-3)² + (y+2)² = 16
And you can multiply it out if you like
(x-3)(x-3) + (y+2)(y+2) = 16
x² - 3x + 9 + y² + 4y + 4 = 16
x² + y² - 3x + 4y + 13 = 16
x² + y² - 3x + 4y - 3 = 0
Edwin
