Write the domain and the range of the function, f(x) = .

The graph of f(x) is

(i) domain

Domain for is [0, ∞).

Hence, domain for is [1, ∞).

(ii) Range

As the range of function f(x) = √x is given by the interval [0 , +∞).

The graph of the given function f(x) = √x - 1 is the graph of √ x shifted 1 unit to the right. A shift to the right does not affect the range.

Hence the range of f(x) = √x - 1 is also given by the interval: [ 0 , +∞).