(a) what are the coordinates of the center of the circle? (b) what is the length of the radius of the circle? someone me id really appreciate it.

the center is (-2,6)

the radius is 6

Step-by-step explanation:

you would have to get this equation in standard form (x-h)^2 + (y-k)^2 = r^2

to plot points   for x just start at the origin (middle) and go to the left however many times it say(if the number is a positive) if the number is a negative then go right however many times it says if it is 0 go nowhere

now keep you pencil there and go up however many times it says on y(if it is positive) if it is negative then go down however many times it says. if it says 0 go nowhere.

you have just plotted a point! now when you finish plotting all of them connect them with a ruler

plot each point as (-3, 7), (0,4), (3,1), (8,-4)   in the parenthesis on the left of the comma is x and the right is y.