Answer
See answers.
Work Step by Step
See the diagram.
The right hand rule tells us that the magnetic field circles each wire in a counterclockwise fashion.
To find the direction of each field, first draw a radius line from the wire to the field point. At the field point, draw an arrow perpendicular to the radius you just drew. oriented so that the directed arrow would be a portion of a counterclockwise circle (i.e., the arrow you drew is tangent to an imaginary circle, centered on the wire).
The magnetic field strength is inversely proportional to the distance from the wire. Qualitatively add the magnetic field vectors due to each current.
The magnetic field at point 2 is zero because the fields exactly cancel each other.
