Answer :
Domain: Domain of a functions is defined as set of all values of x taken by the function, Which means all the values of x taken by the graph.
From the figure, we can see that all values of x taken from [-1, - 4]. So domain is [-1, - 4].
Range: Set of all values produce of by function, Which means all y's values taken by the graph.
From the graph, we can see that between - 2 to - 4 all values are taken by graph Hence, Range is given as [-2,-4].