Answer
a) -5
b) -1
Work Step by Step
a) $h(-4)=-(-4)+\frac{3}{2}=4+\frac{3}{2}=\frac{11}{2}$
$h(1)=1+\frac{3}{2}=\frac{1}{2}$
$h(1))-h(-4)=\frac{1}{2}-\frac{11}{2}=-5$
b) $\frac{\frac{1}{2}-\frac{11}{2}}{1--4}=-5/5=-1$
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