To rotate the point \((-4, -6)\) by 90 degrees counterclockwise, we can use the rotation rule for points in the Cartesian plane. The rule states that for a point \((x, y)\), rotating it 90 degrees counterclockwise transforms it to \((-y, x)\).
Applying this rule to the point \((-4, -6)\):
- The new x-coordinate will be \(-(-6) = 6\).
- The new y-coordinate will be \(-4\).
Thus, the new point after a 90-degree counterclockwise rotation is \((6, -4)\).
So the correct response is \((6, -4)\).