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10 cards from this deck
A function like y = |f(x)| with non-negative outputs.
|x| = -x if x < 0.
|f(x)| = -f(x) for f(x) < 0.
Flips negative parts of f(x) over the x-axis.
For x < 3, y = -x + 3; for x ≥ 3, y = x - 3.
A point where f(x) changes sign, causing cusps.
It changes behavior for x < 1, affecting the range.
They help minimize errors in fields like engineering.
Flips parts below x-axis upward.
Outputs are always non-negative.
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