the average rate of change is just the slope from (0,f(0)) to (1,f(1))
find f(0) and f(1)
[tex]f(0)=-3(0)^4-(0)^3+3(0)^2+0+3=3[/tex]
[tex]f(1)=-3(1)^4-(1)^3+3(1)^2+1+3=-3-1+3+1+3=3[/tex]
slope from (0,3) to (1,3) is rise/run=(3-3)/(0-1)=0/-1
the average rate of change from x=0 to x=1 for f(x) is 0