Determine the length of the intercept on the line y=xy = xy=x made by the circle x2+y2−4x−6y+9=0x^2 + y^2 - 4x - 6y + 9 = 0x2+y2−4x−6y+9=0.
2\sqrt{2}2
222\sqrt{2}22
323\sqrt{2}32
424\sqrt{2}42