How to find the asymptotes of g(x)=5^x?

1 Answer
May 31, 2016

There is a horizontal asymptote of y=0
No vertical asymptote.

Explanation:

As x becomes increasingly larger as x>0 the 5^x becomes increasingly larger.

So for x>0" " lim_(x->color(white)()^(+)oo) 5^x=oo

So as x is capable of increasing to oo there is no vertical asymptote for x>0
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For x<0 then 5^x = 1/5^x

As x becomes increasing larger (but negative) then 5^x=1/5^x becomes increasingly smaller.

So for x<0" " lim_(x->color(white)()^(-)oo) 5^x= 0

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There is a horizontal asymptote of y=0

Tony B