Area of symmetrical graphs

A function whose graph is symmetrical in opposite quadrants is

A function whose graph is symmetrical about y-axis is

Which of the following is a function whose graph is symmetrical about the origin ?

A function whose graph is symmetrical about the origin is given by -(A)f(x+y)-f(x)+f(y)

Consider a symmetrical cross inscribed in a circle of radius 2. If the maximum area of cross is K then [K] equals ([.] denotes GIF)

A function whose graph is symmetrical about the y axis is given by f(x)=sin[log(x+sqrt(x^(2)+1))]

If the graph of the function y=f(x) is symmetrical about the line x=2, then