Answer
(a) $f(1)=3$
(b) $f(-1)\approx-0.3$
(c) $x=0$ and $x=3$
(d) $x\approx-0.6$
(e) Domain: $[-2,4]$ and Range: $[-1,3]$
(f) Domain: $[-2,1]$
Work Step by Step
When the question says "estimate", the answer does not need to be exact, but it has to be in a range. The estimated answer of (b) has to range from $-0.2$ to $-0.4$, and the estimation of (d) has to range from $-0.7$ to $-0.5$. On other questions, you have to state the exact values by looking at the graph.
We have:
(a) $f(1)=3$
(b) $f(-1)\approx-0.3$
(c) $x=0$ and $x=3$
(d) $x\approx-0.6$
(e) Domain: $[-2,4]$ and Range: $[-1,3]$
(f) Domain: $[-2,1]$
