SOLUTION: If f(x)= x^3+3x^2 -9x+2,then A) f(x) has a maximum at x=1 B) f(x) has a neither a minimum nor a maximum at x=3 C) f(x) has a minimum at x=1 D) none of these
Algebra ->
Equations
-> SOLUTION: If f(x)= x^3+3x^2 -9x+2,then A) f(x) has a maximum at x=1 B) f(x) has a neither a minimum nor a maximum at x=3 C) f(x) has a minimum at x=1 D) none of these
Log On
Question 962098: If f(x)= x^3+3x^2 -9x+2,then A) f(x) has a maximum at x=1 B) f(x) has a neither a minimum nor a maximum at x=3 C) f(x) has a minimum at x=1 D) none of these Answer by Fombitz(32388) (Show Source):
You can put this solution on YOUR website! Graphing the equation,
.
.
. .
.
.
.
It has a local minimum at .
I'm not sure if that counts as answer C since it's only a local minimum.
So it's either C or D.