Question

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)

Answer 1

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

Answer 2

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

Answer 3

Thank you and what about the range and the domain