Answer:
I would define what a poor study habit is, using a parameter like study time in hours or days.
Let a study time of at least 2 hours per day be good, and less than 2 hours per day be poor.
Let f(x) be the study habit of a particular grade, so we write:
Good study time as:
![f(x)\ge2](https://img.qammunity.org/2023/formulas/mathematics/college/s7dblcwm2467j1tkk4l0c0s1c1ppjnrazq.png)
Bad study time as:
![f(x)<2](https://img.qammunity.org/2023/formulas/mathematics/college/7habxa1lue7niazo0g2swqa8v9fg36v29a.png)
The last one can represent the study habits of Grade 7 students.