A Thin Flat Plate Is Situated in an Xy-Plane Such

Multiple Choice

A thin flat plate is situated in an xy-plane such that the density d ( in lb/ft ² ) at the point is inversely proportional to the square of the distance from the origin. What is the effect on the density at P if the x- and y-coordinates are each multiplied by

A) d is multiplied 2
B) d is multiplied 2.83
C) d is multiplied 0.25
D) d is multiplied 0.50
E) d is multiplied 4