Answer:
The exact graph is attached.
To graph this functions we just need to give arbitrary values to x and calculate each corresponding value to f(x).
In this case, we could use the following table:
x f(x)
-2 0
-1 4
0 0
1 -18
2 -24
If you graph each pair, you will have 5 points, which once connected it will give you the graph attached.
