The domain of a function is the set of x-values for which the function is defined.
The range of a function is the set of all values that the function takes (y-values)
For the given function:
Domain: -1 ≤ x <2
The circle in point (2,0) indicates that the function is not defined in x=2, then the inequality sing is <
Interval notation domain:[tex]\lbrack-1,2)[/tex]
Range: 0 < y ≤ 4
Interval notation Range:[tex](0,4\rbrack[/tex]
