Answer:
![y\leq 4](https://img.qammunity.org/2022/formulas/mathematics/high-school/3loxz0c4u4qcmcsnoozhzrffitybprea9u.png)
Explanation:
The range is about the y values, and by looking at this parabola we can see that the maximum value is a 4. So the range would be the maximum and below (where the parabola extends to). So the values in the range would be equal to 4 and less than since the parabola is negative.
Hope this helps :)