Identifying Piecewise Functions
Which of the following does NOT represent a piecewise function?
A
f(x) = x, x < 0
f(x) = x + 5, x = 0
f(x) = 2, x > 0
B
f(x) = |x|
C
f(x) = 2 - x, x < -7
f(x) = x² + 1, x ≥ -7
D
f(x) = x - 2
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