Question

Find the center of the circle with equation x^2+y^2-4x+6y+1=0

Answer 1

For equation of circle in this form:
x^2 + y^2 +Dx +Ey +F =0
centre = (-D/2 , -E/2)
Now, D= -4, E = 6, can you find the answer?

Answer 2

-2,-3?

Answer 3

Nope, y-coordinate is correct, not for the x.

Answer 4

for x coordinate, it's equal to -(-4)/2 =4/2 =?

Answer 5

Ok! Makes sense now. Thx!