Betty can be correct by saying she found a "solution" and Andrea can correct by saying how there "no solution" in the problem. My opinion is that Andrea is correct about there no solution in the problem because if both the graph intersects at a single point or touch each other then both are wrong. If the graph have two functions that cut each other at two points then Betty is correct. If both graphs intersect then Andrea is right. But if both of the graphs intersects at a single point or touch each other then both are wrong.
