#### Answer

(a) f(1)=3
(b) f(-1)=0.25
(c) x=0 and x=3
(d) x=-0.75
(e) D:(-2,4) and R:(-1,3)
(f) x e {-2,1}

#### Work Step by Step

Use the graph to answer all the questions. When the question says "estimate", the answer will not be exact. When the question says "state", the answer will be exact.