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

Answer 1

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

Answer 2

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

Answer 3

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

Answer 4

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

Answer 5

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

Answer 6

Thank you!