Consider the circle x2+y2−4x−6y+9=0x^2 + y^2 - 4x - 6y + 9 = 0x2+y2−4x−6y+9=0. Which of the following statements is true?
The circle is tangent to the x-axis.
The circle is tangent to the y-axis.
The radius of the circle is 3.
The center is at (−2,−3)(-2, -3)(−2,−3).