## anonymous 5 years ago f(x)={x^2-1,x≤0 2x-2, x>1 find the domain and range of f(x) find f(0) and f(4)

1. anonymous

$f(0)=0^2-1=-1$ $f(4) =2\times 4 +2=6$

2. anonymous

you use the top rule for 0 since $0\leq 0$ and the bottom rule for 4 since $4>1$

3. anonymous

Thank you and what about the range and the domain