Answer:

Step-by-step explanation:
You can use the center of a circle to write an equation in vertex form. Vertex form is
and the vertex is (h,k). Notice (h,k) are the opposite sign in the equation then as the point.
Here h = -4 and k = 3. Substitute these values and the value r = 5.

Answer:
1/2
Step-by-step explanation:
take change in X divided by change in Y values
It would be c because I used a graphing calculator lols