What is the domain and range of #y= (-2^-x) - 4#?
Using Interval Notations we can write our domain as
We have the function
This function can be written as
Please analyze the graph given below:
The domain of a function f(x) is the set of all values for which the function is defined.
We observe that the function does not have any undefined points.
The function does not have any domain constraints either.
Hence, domain is
Using Interval Notation we can write our domain as
The range of the function is the set of all values that
From our graph, we observe that the range* is
Using Interval Notations we can write our range as
It is useful to remember that the range of the function is same as the domain of the inverse function.