By definition, a fixed point for the function f is a number x0 such that f(x0)=x0. For instance, to find any fixed points for the function f(x) =3x-2, we write 3x0 -2 = x0. On solving this equation we get xo=1. Thus 1 is a fixed point for f. Calulate the fixed point (if any) for each function.
a)f(x)=6x+10
b)g(x)=x^2 -2x -4
c)S(t)= t^2
d)R(z)= (z+1)/(z-1)