IM TAKIN A CALCULUS FOR BUSINESS COURSE AND I NEED TO SOLVE THIS PROBLEM..

Use the four step process to find f(x) and then find f(1),f(2),f(3)
f(x)=2-3x3. (that x at the end is cubed)...

and the answer for f(x)=-6x. thats the first answer, i just need to know howd they get that answer. procedures!!
i haven't started calculus yet, but i would guess that you would just substitute.

f(X)=2-3(1)^3
f(X)=2-3^3
f(X)=2-9
f(X)=-6

but i dunno, as i said, i'm not in calculus till november.
Quote by SoftOath
u mean grammar nazi...wait

grammar jesus = grammar nazi...then ....jesus = nazi!!!

omg

Quote by Zugunruhe
*squishes allan143 with a rolled up newspaper*

ok, now everyone can agree that mosquitoes are douchebags.

8/7/09 Night of the Pear II (i was there)
I'm pretty sure your calculus teacher doesn't know ****, or you wrote the problem wrong. In no way is f(x) -6x if f(x)=2-3x^3. Even if your trying to find the derivative, which I think you are, that's still not right. Are you sure you know what the problem is asking?
...this isn't calculus ? I'm in AP calculus BC and this just seems like an algebra 2 substitution problem...
Quote by allan143
i haven't started calculus yet, but i would guess that you would just substitute.

f(X)=2-3(1)^3
f(X)=2-3^3
f(X)=2-9
f(X)=-6

but i dunno, as i said, i'm not in calculus till november.

oh, well when were you in arithmetic?

My mind is going. I can feel it.
what allan143 said is irrelevant.
f(x)=2-3x3. (that x at the end is cubed)...

derivative=

0-3*x3
=-3*3x2
=-9x2

f1(x)=-9x2

i think. If that is what your trying to find.
Last edited by BassmasterGreg at Sep 9, 2009,
Quote by Seney
...this isn't calculus ? I'm in AP calculus BC and this just seems like an algebra 2 substitution problem...

this
I think we took too many drugs when we were kids,
'cause now we like to make
Weird Music
-Wayne Coyne
Quote by ZoSo_bc89
what allan143 said is irrelevant.

figured as much
Quote by SoftOath
u mean grammar nazi...wait

grammar jesus = grammar nazi...then ....jesus = nazi!!!

omg

Quote by Zugunruhe
*squishes allan143 with a rolled up newspaper*

ok, now everyone can agree that mosquitoes are douchebags.

8/7/09 Night of the Pear II (i was there)
Quote by allan143
i haven't started calculus yet, but i would guess that you would just substitute.

f(X)=2-3(1)^3
f(X)=2-3^3
f(X)=2-9
f(X)=-6

but i dunno, as i said, i'm not in calculus till november.

Damn you got it wrong! Potence is not transitive!

in your case that would be
f(x)= 2-3.x^3
f(x)= 2-3.(1^3)
f(x)= 2-3 = -1

But anyways I think the TS has to explain himself better.