To rotate a point \((x, y)\) by 180 degrees counterclockwise around the origin, you can use the transformation:
\[ (x, y) \rightarrow (-x, -y) \]
For the point \((-4, -6)\), applying the transformation gives us:
\[ (-4, -6) \rightarrow (4, 6) \]
Thus, the new point after rotating \((-4, -6)\) by 180 degrees counterclockwise is \((4, 6)\).
The correct answer is: \((4, 6)\)