The given function is
![y=-9(9)^x](https://img.qammunity.org/2023/formulas/mathematics/college/2hkstdx71pxdi5ur1ps8rpc1butd3mdg30.png)
The domain the values of x which make the function defined
The range is y that is the corresponding values of y to the given x
All values of the set of real numbers can be the value of x
No value of x can make the function undefined, then
The domain is all real numbers
Since the initial value of the function (value of y at x = 0) i