Find the equation of a circle with a center at (0, -4) and a point on the circle is (6, 0).

Step-by-step explanation:

Equation of circle with center (a , b) and radius, r is :

Given :  a = 0 , b = - 4

Step 1 : Find the radius.

       Given ( 6 , 0 ) lies on the circle. Therefore the distance between the center (0 , - 4) of the circle and ( 6 , 0 ) gives the radius of the circle.

Step 2 : Equation of circle.

( - 4 , -7 )

all the lines must parallel  

step-by-step explanation:

coordinates of c = ( - 1 , 2 )

3 units left = ( -4 , 2 )

9 units down = ( - 4 , 11 )