More Iteration Practieeecceeeee

For all the below functions, iterate each 7 times, from $x_0
=1$
Number 1 is right off the Quiz 1 review sheet.

1) $f(x)=x^2 -1$
2) $f(x)=2x^2-2$
3) $f(x)=x^3+3$
4) $f(x)= (x^2)/2$

Crazy - where'd you get these???

Off the top of my head.

1. -1,0,-1,0,-1,0,-1
2. -2,6,70,9798,192001606,7.37*10^16,1.09*10^34
3. 3,30,27003, many big numbers
4. 0,0,0,0,0,0,0

I don't think number 4 iterates to 0 over and over.

Yes it does, because $$0^2 = 0$$ and $$0/2 = 0$$thus having the same output as the input, which results in the same number every time. Did I do my math wrong on something?

@Chief_Keith You are correct that $0$ is a fixed point, but the problem states that $x_0=1$.