Answer
(a) -4
(b) -2
(c) 0
(d) 25
Work Step by Step
We plug in the $x$ values into the the piece of the graph whose interval includes that $x$ value:
(a) $f(0)=2(0)-4=-4$
(b) $f(1)=2(1)-4=-2$
(c) $f(2)=2(2)-4=0$
(d) $f(3)=(3)^{3}-2=25$
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