SOLUTION: a circle has an equation of (x+7)^2+y^2=49. Find the center (h,k) and radius r and graph the circle.

Algebra ->  Linear-equations -> SOLUTION: a circle has an equation of (x+7)^2+y^2=49. Find the center (h,k) and radius r and graph the circle.       Log On


   

Question 960666: a circle has an equation of (x+7)^2+y^2=49. Find the center (h,k) and radius r and graph the circle.
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!
%28x-h%29%5E2%2B%28y-k%29%5E2=r%5E2
so, a circle that has an equation of %28x%2B7%29%5E2%2By%5E2=49, has the center (h,k)=(-7,0) and radius r=7