Can someone help me please to understand this, to answer correctly and explain it so that I can understand it. Thank you.

This is Calculus 1

7 (10 pts - 5 pts each graph) Coffee is being poured at a constant rate into the cup shown below. Give a rough graph of the height of the coffee in the cup as a function of time and a rough graph of the rate of change of the height of the coffee in the cup as a function of time. The bottom will fill with coffee (it's not just the base of the cup). Let the first change in the side of the cup happens at a and the second change happens at b. dh h dt t