Homework Help: Calculus

Posted by sh on Wednesday, December 8, 2010 at 8:10pm.

Find the horizontal asymptote of
f(x)=e^x - x

lim x->infinity (e^x)-x= infinity
when it's going towards infinity, shouldn't it equal to negative infinity, since 0-infinity = - infinity

lim x-> -infinity (e^x)-x= infinity

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