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2- Y=X/1+X^2X_AXIS (X,Y) _(x,-y)-y dose not equal x/1+x^2 no sum about x-axisy_axis (x,y)_(-x,y)y not equal –x/1+x^2 no sum about y-axisOrigin (x,y)_(-x,-y)-y not equal –x/1+x^2 no sum about origin3- y^2=x^2+1/x^2-1x-axis (x,y) _ (x,-y)-y^2 not equal x^2+1/x^2-1 no sum about x- axisy-axis (x,y) (-x,y)y^2-=x^2+1/x^2-1origin (x,y)_(-x,-y)-y^2not equal x^2+1/x^2-1 no sum about origin4_ y=root a-x^2x-axis (x,y)_(x,-y)-y not equal root a-x^2 no sum about x- axisy-axis (x,y)_(-x,y)y not equal root a+x^2 no sum abot y-axisorigin (x,y)-(-x,-y)-y not equal root a+x^2 no sum about origin