Question 84915
        f(x)=-4x^2+2
        the values of x are called domain
        the values of f(x) obtained are called range
        if x=(0,1,2,3,4,5,6...)then f(1)=-4(1)+2=-4+2=-2
                                    f(0)=-4(0)+2=0+2 =+2
                                    f(2)=-4(2)+2=-8+2=-6
                                    f(3)=-4(3)+2=-12+2=-10
                                    f(4)=-4(4)+2=-16+2=-14
         therefore domain is =(0,1,2,3,4........)
            range is =(+2,-2,-6,-10,-14,-18,......)