Sketch a graph of f(x)={3x+15ifx≤−3x2−3if−3<x≤1−2x+2ifx>1\displaystyle {f{{\left({x}\right)}}}={\left\lbrace\begin{array}{ccc} {3}{x}+{15}&\text{if}&{x}\le-{3}\\{x}^{{2}}-{3}&\text{if}&-{3}\lt{x}\le{1}\\-{2}{x}+{2}&\text{if}&{x}\gt{1}\end{array}\right.}f(x)=⎩⎨⎧3x+15x2−3−2x+2ifififx≤−3−3<x≤1x>1
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