A drawing of the parabola y = x2 is photographed using a micro-
scope that magnifies by a factor of 200 in each direction. The pho-
tographed parabola is traced on (unmagnified) graph paper so the
parabola's vertex, orientation, and axis of symmetry are unchanged.
When compared to the drawing of y = x (also drawn on unmagni-
fied graph paper), for what real number a does the photograph of
the parabola look like the graph of y = ax?