There is a quadratic function that opens upwards symmetric with respect to x=2. The vertex of the parabola is at the point (2,-2). Determine the intervals on which the functions are increasing, decreasing, or constant.

Please directly answer the question and provide the final value, e.g., 1, 2.5, 300.
Question: There is a quadratic function that opens upwards symmetric with respect to x=2. The vertex of the parabola is at the point (2,-2). Determine the intervals on which the functions are increasing, decreasing, or constant.

Please first conduct reasoning, and then answer the question and provide the final value, e.g., 1, 2.5, 300, at the end.
Question: There is a quadratic function that opens upwards symmetric with respect to x=2. The vertex of the parabola is at the point (2,-2). Determine the intervals on which the functions are increasing, decreasing, or constant.
