State the range of the function:

f(x) = 3^(x+9) + 4

I believe that the answer is:

(-1, infinity)

Am I correct?

Any help is appreciated.

Printable View

- Dec 18th 2009, 12:20 PMiluvmathbutitshardRange of a function?
State the range of the function:

f(x) = 3^(x+9) + 4

I believe that the answer is:

(-1, infinity)

Am I correct?

Any help is appreciated. - Dec 18th 2009, 12:26 PM11rdc11
- Dec 18th 2009, 12:30 PMbigwave
by adding 4 you shift the graph up 4 units

- Dec 18th 2009, 12:43 PMRaoh
- Dec 18th 2009, 01:00 PMRaoh
hi(Happy)

i think for every real $\displaystyle x$ your function is strictly positive,

$\displaystyle \forall x\in \mathbb{R},f(x)> 0$.

therefore the range is $\displaystyle (0,+\inf)$.