My calculus assignment is asking this:
If 4x, simplify the expression by removing the absolute sign.
abs(4 - x) = ?
It is asking for only a single definite answer. What could this be? I really don't understand.
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Using the definition of the absolute value
Slightly more succinctly, if 4< x, then 0< x- 4, 0> 4- x.
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