A polynomial function is shown below:

f(x) = x^3 - x^2 - 9x + 9

Which graph best represents the function?

Graph A: http://prntscr.com/6tpb2e
Graph B: http://prntscr.com/6tpb8a
Graph C: http://prntscr.com/6tpbe2
Graph D: http://prntscr.com/6tpbjk

Question

A polynomial function is shown below:

f(x) = x^3 - x^2 - 9x + 9

Which graph best represents the function?

Graph A: http://prntscr.com/6tpb2e
Graph B: http://prntscr.com/6tpb8a
Graph C: http://prntscr.com/6tpbe2
Graph D: http://prntscr.com/6tpbjk

anonymous · Answer

Not B , Definetly not D : its between A And C

leahhhmorgannn · Answer

I really don't know how to do this question. 
How did you rule those out?

anonymous · Answer

well , just put the 0 
f(0) = 0^3 + 0^2 - 9(0) + 9 
f(0) = 9 
when 
x = 0 
y = 9 
you compare it to the graph

leahhhmorgannn · Answer

Then, based on that, I think C should be the answer.

anonymous · Answer

yes its C , F(2) = 8 - 4 - 18 + 9 = -5 
The graph is C

leahhhmorgannn · Answer

Thank you!