How do I go about doing this problem?

The water from a fire hose follows a path described by y = 2.0 + 0.6x - 0.30x (units are in meters). If vy is constant at 5.0 m/s, find the resultant velocity at the point (2.0,2.0). Find the magnitude of the velocity of the water at the point (2.0,2.0). The magnitude is approximately |m/s. (Type an integer or decimal rounded to one decimal place as needed.) Find the direction of the velocity of the water at the point (2.0,2.0). Enter an angle 0 such that 0 0