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OpenStudy (anonymous):
Which of the following are equivalent definitions of f(x)? A. f(x)=x+2|x| B. f(x)=|x|-x C. f(x)=2x+|x| D. f(x)=3x E. f(x)=3|x|
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OpenStudy (anonymous):
f(x)= x x<0 and 3x x equal to or >0
OpenStudy (anonymous):
that's the definition of f(x) ^^^
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