SOLUTION: how do you graph the logarithmic equation y= 1/3^(x-1) ?

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Question 607865: how do you graph the logarithmic equation y= 1/3^(x-1) ?
Answer by richard1234(7193) About Me  (Show Source):
You can put this solution on YOUR website!
That is exponential, not logarithmic.

If you know how to graph y = 3^x, this one is easy. The graph of (1/3)^x is simply an inverted y = 3^x (since 3^x = (1/3)^(-x)). Basically, reflect y = 3^x across the y-axis. However, the exponent is x-1, not x, so just shift the function one unit to the right. Final result should look something like this:

http://www.wolframalpha.com/input/?i=y+%3D+%281%2F3%29%5E%28x-1%29