# Math Help - Fuction limit question

1. ## Fuction limit question

2. Originally Posted by greenbee
The graph must be:

The minus sign should be a plus... I think. If it is, then see attached graph.

Numerically, in Excel, I get:

x f(x)
1 4
10 13.78584918
100 19.21863198
1000 19.99553462
10000 20.07650227
100000 20.08463311
1000000 20.08544654

Good luck!!

3. Originally Posted by apcalculus
The graph must be:

The minus sign should be a plus... I think. If it is, then see attached graph.

Numerically, in Excel, I get:

x f(x)
1 4
10 13.78584918
100 19.21863198
1000 19.99553462
10000 20.07650227
100000 20.08463311
1000000 20.08544654

Good luck!!
i'm not good with math so
a) 4
b) 20.0854

4. Originally Posted by greenbee
For what it's worth, the exact limit is $e^{-3}$. If (as has been suggested earlier but I'm not sure why) the minus is meant to be a plus then the exact limit is $e^{3}$.

5. Originally Posted by mr fantastic
For what it's worth, the exact limit is $e^{-3}$. If (as has been suggested earlier but I'm not sure why) the minus is meant to be a plus then the exact limit is $e^{3}$.
what a disgusting problem!!! but ty fo helping me!!!

so

a) is
e^{3}
b) 20.08544

i am stupid with math! please just tell me bows*