can you please help.

label Algebra
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For which function is the range {y | y ≤ 0}?

A. f(x) = ­- x

B. f(x) = [[x]]

C. f(x) = ­- | x |

D. f(x) = | x |

Jan 12th, 2015

I think your answer is the function f(x)=-|x|, since we can write:

f(x)=-x, if x>=0

and:

f(x)=x, if x<0

Jan 12th, 2015

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Jan 12th, 2015
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Jan 12th, 2015
Oct 20th, 2017
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