3-D plot of $0\leq x\leq 1,0\leq y\leq 1,0\leq z\leq 1$

Question

I can't figure this out :
When we plot the inequalities $0\leq x\leq 1,0\leq y\leq 1,0\leq z\leq 1$ graphically what do we obtain ?
Kindly help..

Answer 1

A cube ! With one vertex at $(0,0,0)$ and the "opposite" one in $(1,1,1)$.