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Re: Guys help me with math (Algebra 3)

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Papaluty is not online. Papaluty
Joined: 13 May 2011
Total Posts: 15076
20 Oct 2015 09:27 AM
Not gettinf this at all prob easier than i think tho

Find the domain: f(x) = x^2 + x - 12
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Papaluty is not online. Papaluty
Joined: 13 May 2011
Total Posts: 15076
20 Oct 2015 09:28 AM
Explain me how it goes i think its (-inifinity,inifinity) tho
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Papaluty is not online. Papaluty
Joined: 13 May 2011
Total Posts: 15076
20 Oct 2015 09:29 AM
There are more but too hard to type out
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MySeason is not online. MySeason
Joined: 11 Jul 2015
Total Posts: 532
20 Oct 2015 09:32 AM
wow this is also that 1 thing i havent understand

i got matrix and vector quick but functions are hard af
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Papaluty is not online. Papaluty
Joined: 13 May 2011
Total Posts: 15076
20 Oct 2015 09:32 AM
1 3
f(x)= ------- + -------
X + 8 X - 10

Sry if format is kill
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Arkitek is online. Arkitek
Joined: 09 May 2015
Total Posts: 13095
20 Oct 2015 09:33 AM
{All real numbers}
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Papaluty is not online. Papaluty
Joined: 13 May 2011
Total Posts: 15076
20 Oct 2015 09:39 AM
Whzg help
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HexC3D is not online. HexC3D
Joined: 30 Jun 2012
Total Posts: 10044
20 Oct 2015 09:42 AM
Ugh this stuff
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GamezRKool is not online. GamezRKool
Joined: 11 Dec 2013
Total Posts: 39018
20 Oct 2015 09:46 AM
I'm in Algebra 1, and I hate it already...
damn thats tough
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Papaluty is not online. Papaluty
Joined: 13 May 2011
Total Posts: 15076
20 Oct 2015 09:48 AM
Yeah i judt gonna use an online calculator
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GamezRKool is not online. GamezRKool
Joined: 11 Dec 2013
Total Posts: 39018
20 Oct 2015 09:49 AM
math papa is good, i used to use it


It is better to be Poor, yet Honest, than Rich, but Untrustworthy & Greedy ~GRK |>The Sarcastic INTP<|
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Varuni is not online. Varuni
Joined: 27 Oct 2010
Total Posts: 1095
20 Oct 2015 09:50 AM
idk that stuff whent from algebra to geometry then trig lold


PIES
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sonihi is not online. sonihi
Joined: 27 Jun 2009
Total Posts: 3655
20 Oct 2015 09:55 AM
Problem Nr.1 f(x) = x^2 + x - 12
the domain is (-infinity,infinity),since the function is DEFINED for all real numbers.

Nr.2 f(x) = 1/(x+8) + 3/(x-10)
the Solution is all real numbers except -8 and 10 in set builder notation:
{x∈R | x=/= (-8), x=/=10}

Grab your Glocks, call the Cops!
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BmoBeMore is not online. BmoBeMore
Joined: 04 Jan 2011
Total Posts: 8120
20 Oct 2015 09:57 AM
x^2+x-12=0,a=1,b=1,c=-12
delta=b^2-4ac=1-4(-12)=49
x1=-b+sqr of delta/2a
xs=-b-sqr of delta/2a
x1=3
x2=-4
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sonihi is not online. sonihi
Joined: 27 Jun 2009
Total Posts: 3655
20 Oct 2015 10:00 AM
@Above
Read the definition of Domain in math.



Grab your Glocks, call the Cops!
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sonihi is not online. sonihi
Joined: 27 Jun 2009
Total Posts: 3655
20 Oct 2015 10:03 AM
Also a useful tool is always the good old Wolframalpha. It can do domain, plots, solve all sorts of equation etc. The best tool for this purpose IMO.


Grab your Glocks, call the Cops!
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BmoBeMore is not online. BmoBeMore
Joined: 04 Jan 2011
Total Posts: 8120
20 Oct 2015 10:13 AM
so you just say (-infinite,infinite) and done, problem solved? thats irrelevant
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Papaluty is not online. Papaluty
Joined: 13 May 2011
Total Posts: 15076
20 Oct 2015 10:46 AM
Hey at least i got the first one right!!!
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sonihi is not online. sonihi
Joined: 27 Jun 2009
Total Posts: 3655
20 Oct 2015 10:46 AM
@Above
The function is definied for all real numbers therefore the domain is (-infinity,infinity)
Also what you did is calculate the roots.


Grab your Glocks, call the Cops
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PotatoShadow is not online. PotatoShadow
Joined: 10 Apr 2011
Total Posts: 54239
20 Oct 2015 10:47 AM
any value the makes the function divide by 0 or take the square root of a negative number is out of the domain i think

RAP: R$193,642 ~Formerly known as shadow888888880™
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QUANGA is not online. QUANGA
Joined: 17 Mar 2011
Total Posts: 13127
20 Oct 2015 10:48 AM
Algebra 3 doesn't exist...


Ur in algebra 2 like me m8


After A2 is either statistics or calc


fite me
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Papaluty is not online. Papaluty
Joined: 13 May 2011
Total Posts: 15076
20 Oct 2015 10:49 AM
Algebra 3 is a brand new class this year
I took algebra 2 last year
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QUANGA is not online. QUANGA
Joined: 17 Mar 2011
Total Posts: 13127
20 Oct 2015 10:50 AM
wtf u should be in pre-calc or stat rn



rip ur school
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Papaluty is not online. Papaluty
Joined: 13 May 2011
Total Posts: 15076
20 Oct 2015 10:51 AM
I had the option
They said algebra 3 is the easiest
Im like k
They lied
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QUANGA is not online. QUANGA
Joined: 17 Mar 2011
Total Posts: 13127
20 Oct 2015 10:54 AM
im taking pre-calc next year cuz stat is whack and algebra 3 sounds like a nightmare
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