, we get
.
as 
as 
![f(x)=-\left(\dfrac{1}{3}\right)^{-x}=-\Bigg[\left(\dfrac{1}{3}\right)^{-1}\Bigg]^x=-(3)^x\\\\f(x)1.\ \text{Therefore}\ 3^x\ \text{is increased}.\\\\\text{We have}\ -3^x,\ \text{therefore the graph is decreased}.](/tpl/images/0022/5509/fccc9.png)
Which graph represents the function f(x)=-(1/3)^-x
...
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