[tex]\text{The graph of the function }y=-4x^2\text{ is as shown below}[/tex]
The function y is defined for all real values of x.
Therefore,
[tex]\text{Domain }=(-\infty,\infty)[/tex][tex]\text{ The values of y range from 0 to }-\infty[/tex][tex]\begin{gathered} \text{Therefore,} \\ \text{Range = }(-\infty,0) \end{gathered}[/tex]
