Suppose a line that appears parallel to side BC¯¯¯¯¯¯¯¯ of △ABC intersects sides AB¯¯¯¯¯¯¯¯ and AC¯¯¯¯¯¯¯¯ at points X and Y respectively, and AX/AB=1/2. How can you determine if the line is or is not parallel to BC¯¯¯¯¯¯¯¯? Explain.