Answer:
The volume of the container is 
Step-by-step explanation:
we know that
The volume of the figure is equal to

where
B is the area of the base
h is the height of the figure
Let

Find the area of the base B

substitute

Do you will need to know that for what.
Look at the vertical line on the graph and find five
Place a dot there
Look at the horizontal line and look to the left to find -7
Place a dot there
Now, just get a ruler and draw a line connecting the two dots
X equals 4 and the x axis