SOLUTION: give the equation of the circle (in standard form) that has the given center and radius length. 1.) (0,0);r=6 2.) (-2,4);r=4

Algebra ->  Circles -> SOLUTION: give the equation of the circle (in standard form) that has the given center and radius length. 1.) (0,0);r=6 2.) (-2,4);r=4      Log On


   



Question 394948: give the equation of the circle (in standard form) that has the given center and radius length.
1.) (0,0);r=6
2.) (-2,4);r=4

Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!

Hi
Standard Form of an Equation of a Circle is %28x-h%29%5E2+%2B+%28y-k%29%5E2+=+r%5E2
where Pt(h,k) is the center and r is the radius
1.)Center Pt(0,0) and r = 6 x^2 + y^2 = 36
2.)Center Pt(-2,4)and r = 4 (x+2)^2 + (y-4)^2 = 16