Answer:

Step-by-step explanation:
By using the formula:-

where, (h,k) is the center and r is the radius
The correct answer is ALL REAL NUMBERS.
The first one would be the right one!
you just take all the y one side and the numbers on one side
so 8y+4= 6+3y
now 8y-3y= 6-4
therefore 5y = 2
!!
That would be (1, -3) because you basically divide the coordinates by the scale factor, in this case 2.