For the following exercises, write the domain for the piecewise function in interval notation.
f(x) = { x + 1 if x is less than -2
f(x) = { -2x - 3 if x ≥ -2

f(x) = { x2 - 2 if x is less than 1
f(x) = { -x2 + 2 if x is greater than 1

f(x) = 2x - 3 if x is less than 0
f(x) = -3x2 if x ≥ 2

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