The graph of parabola is given in downward direction.
The domain of the parabola is represent x-values of the function.
Therefore, the domain of the x-value is
[tex]D=\text{ x}\epsilon R\text{.}[/tex]Here R denotes the real numbers and x belongs to all real numbers is the domain of the parabola.
The range of the parabola is represent y-values of the function that can observe from the graph.
The value of y is ,
[tex]y\leq3[/tex]Therefore , the range of the parabola function is y less than equal to 3.
