Question #895e9

1 Answer
Monzur R.
Sep 4, 2017

"Dom"(f)= u in RR, u!= -1

"Ran"(f) = yin RR, y!=1

Explanation:

The function y-=f(u)=1"/"(1+1"/"u) can be rewritten as f(u)=u"/"(u+1).

From the rewritten form, it's clear that u!=-1 as this would cause the denominator to be equal to zero. From the original form, we can see that a horizontal asymptote will occur at y=1. This is because as urarroo, yrarr1.

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