Answer:
-2
Step-by-step explanation:
The equation of the line is written in y=mx+c form, where m is the gradient and c is the y-intercept.
In this case, your m is a -2 and your c is a -3.
Hence the gradient of the line is -2.
(-4)3/(-4)-12
-12/48
-1/4
PEMDAS
do multiplication then division
1950 cubic units