\displaystyle f(x) = \[ \left\{\begin{array}{ll} x-2 & 2 \leq x \leq 6 \\ -\frac{5}{2} x+ 5 & -2 \leq x< 2 \\\end{array} \right. \]
\displaystyle f(x) = \[ \left\{\begin{array}{ll} x-2 & 2 \leq x \leq 6 \\ -\frac{5}{2} x+ 5 & -2 \leq x< 2 \\\end{array} \right. \]
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