The poi nt P(-1,1/3)lies on thegraph of the exponential function f(x) = b^{x},then b=

I need the steps please or What I should know before I see an exercise like this in a exam!!

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- May 10th 2013, 10:41 AMalejandroExponential and logarithmic functions
The poi nt P(-1,1/3)

**lies on the****graph of the expone**ntial function f(x) = b^{x},**then b**=

I need the steps please or What I should know before I see an exercise like this in a exam!! - May 10th 2013, 11:45 AMHallsofIvyRe: Exponential and logarithmic functions
You are told that $\displaystyle y= b^x$, and that when x= -1, y= 1/3. That is, $\displaystyle b^{-1}= 1/3$. Now, do you know what "-1 power" means?

- May 10th 2013, 03:53 PMOldspice1212Re: Exponential and logarithmic functions
a

^{-}^{n}= 1/a^{n}