A Track Is Built Whose Height as a Function of Horizontal

Multiple Choice

A track is built whose height as a function of horizontal position x is given by (h and x,both in meters) .If a marble is placed on this track,find the position closest to the axis where it will be in equilibrium.

A) 0.29 m
B) 0.53 m
C) 1.3 m
D) 1.9 m
E) There are no equilibrium points.