Answer: The volume is decreasing here .
The rate of change = -0.25
Step-by-step explanation:
Given: In a graph , coordinate plane with x-axis labeled Number of Hours and y-axis labeled Volume in Liters.
The graph of a line contains the points: (1, 2) and (3, 1.5)
From the points, change in volume = change in y
⇒ Change in volume =[tex]y_2-y_1=1.5-2=-0.5[/tex]
Change in time = change in x
⇒ Change in hours= [tex]x_2-x_1=3-1=2[/tex]
The rate of change for a graph is given by:-
[tex]\text{The rate of change }=\frac{\text{change in y}}{\text{change in x}}=\frac{-0.5}{2}\\\Rightarrow\text{The rate of change }= -0.25[/tex]
Since, the rate of change is negative , therefore, the volume of water decreases.
