Can you me with this algebra 2 question

Create a real-life situation and create a system and show how it might be modeled algebraically with a system of equations (or inequalities) show all work include a few sentences explaining the situation, your variables of choice and what each represents, and how you would set it up and solve it algebraically. !

The graph of a line gets what as the value of the slope gets bigger

What could explain what happened when the time was equal to 120 minutes