HELP, this determines my grade!!

1-) calculate the average rate of change for the function f(x)=x^4+3x^3-5x^2+2x-2 from x=-1 to x=1

2-) given the function f(x)=x^3+x^2-2x+1 what is the resulting function when f(x) is shifted to the left 1 unit

3-) given the function f(x)=-3x^3+9x^2-2x+3 what part of the function indicates that the left end starts at the top of the graph?

4-) graph the function f(x)=x^4-7x^3+12x^2+4x-12 and identifiy for which values of x the graph is increasing

Question

HELP, this determines my grade!!

1-) calculate the average rate of change for the function f(x)=x^4+3x^3-5x^2+2x-2 from x=-1 to x=1 

2-) given the function f(x)=x^3+x^2-2x+1 what is the resulting function when f(x) is shifted to the left 1 unit 

3-) given the function f(x)=-3x^3+9x^2-2x+3 what part of the function indicates that the left end starts at the top of the graph? 

4-) graph the function f(x)=x^4-7x^3+12x^2+4x-12 and identifiy for which values of x the graph is increasing

anonymous · Answer

FIRST ONE IS $$\frac{f(1)-f(-1)}{1-(-1)}=\frac{-1-(-11)}{2}=\frac{10}{2}=5$$

anonymous · Answer

SECOND ONE IS $$f(x+1)=(x+1)^3+9(x+1)-2(x+1)+3=x^3+3 x^2+10 x+11$$

anonymous · Answer

Are you sure the first one isn't -5?