Find the points of discontinuity, f(x)=-22x2, if x≤-1, if -1<x<1, if x≥1

Find the points of discontinuity, $f (x) = \{\begin{matrix} - 2 \\ 2 x \\ 2 \end{matrix} \begin{matrix} , i f x \leq - 1 \\ , i f - 1 < x < 1 \\ , i f x \geq 1 \end{matrix}$

Matching exercise

Match the items on the right to the items on the left.

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