Can someone explain to me how to do this ?

Answer:
Step-by-step explanation:
y=-(x³)
take the points x=-2,-1,0,1,2
y=8,1,0,-1,-8
plot the points (-2,8),(-1,1),(0,0),(1,-1),(2,-8)
2.
y=-x²
take the points x= -2,-1,0,1,2
y=-4,-1,0,-1,-4
plot the points (-2,-4),(-1,-1),(0,0),(1,-1),(2,-4)