Asked by Mello

Find a function f(x), perhaps a piecewise function that is defined but not continuous on (-infinity, infinity) for which the function lf(x)l is both defined and continuous on (-infinity, infinity).

f(x)=

lf(x)l =

Answers

Answered by Damon
y = x^2 ?
Answered by Damon
oh, sorry, that is continuous
how about y = x for x >0
y = -x for x <0
Answered by Steve
how about something really simple, like

f(x)
= 1 for x >= 0
= -1 for x < 0
Answered by Damon
nope, also continuous
try y = x+a for x>0
and y = -x-a for x</=0
Answered by Damon
LOL, too easy Steve :)
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