How to do this question

Answer:
[tex]0[/tex]
Step-by-step explanation:
Given:
[tex]f(x) = \begin{cases} -x -2 &, &x < 0 \\ x &, &0 \leqslant x < 3 \\ x^2 -1 &, &3 \leqslant x \end{cases}[/tex]
Solving for [tex]f(0)[/tex]:
[tex]f(0) = x \text{ when } x = 0 \\ f(0) = 0[/tex]
Answer:
Step-by-step explanation:
move fast