(516) 3

Part of 1996 Tournament Of Towns

Problems(1)

TOT 516 1996 Autumn S O3 reconstruct the axes , parabola y=x^2

Source:

y = x^2

is drawn in the coordinate plane and then the axes are erased so that the whole parabola stays on the picture but the origin is not shown on it. Reconstruct the axes with compass and ruler alone.
(A Egorov)