As stated, there are only two lines that don't meet the criteria. One horizontal, the other vertical. Now, you can imagine that if you were to tilt this line just a wee bit, it would pass through the x and y axes, but the hypotenuse relative to the origin would be extremely long. And if we tilted a bit less, longer still, ad in finitum. So, are you sure that we aren't looking for the line with the SHORTEST hypotenuse?