Consider the equation $(x-4)^2+(y+1)^2=16$.

1. What is the shape of the graph? How can you tell?

   Answer (a):

   Circle

2. What information can you learn about the graph just by looking at the equation?

   Answer (b):

   Center and radius

3. Sketch a graph of $(x-4)^2+(y+1)^2=16$.

   Hint (c):

   Circle