Can someone please show me exactly how to copmlete the quare for this problem. The *** will help you find what part.
Thanks
the goal is to get the equation in the following form ...
where (h,k) are the center coordinates and r is the radius.
start by dividing every term by 4 ...
group the x-vales and y-values together, move the constant ...
***you now want to complete the square for both x and y ... half the coefficient of each linear term, square the result, and add to both sides of the equation ...
factor the quadratic trinomials of x and y ...
now, do you "see" h, k, and r?