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Cryoma Member of the Year
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Posted: Tue Jun 21, 2011 8:36 pm Post subject: uhhh is this right? |
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I feel like a dummy for forgetting function values...
f(x) = -x^2 - x - 4
For f(-2)
f(-2) = -(-2)^2 - (-2) - 4
f(-2) = -4 + 2 - 4
f(-2) = -6
Am doin it write?
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Moments Grandmaster Cheater Supreme
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Joined: 20 Mar 2008 Posts: 1196
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Posted: Tue Jun 21, 2011 8:53 pm Post subject: |
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| yes
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Nirojan How do I cheat?
Reputation: 108
Joined: 16 Sep 2008 Posts: 0 Location: seshville
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Posted: Tue Jun 21, 2011 9:06 pm Post subject: |
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no thats not how you use evilintentions fractal programs
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| Quote: | | yo i b 22 tryna make it in dis rap game but da steetz dont got luv for no wun na mean so im out hea tryna holla at da fams on dis innernet shit u no way i sayin |
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Up2Admin I'm a spammer
Reputation: 126
Joined: 17 Oct 2007 Posts: 6550 Location: Texas
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Posted: Tue Jun 21, 2011 10:01 pm Post subject: |
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-(-2)^2 would be positive 4 right?
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Saucy. How do I cheat?
Reputation: 42
Joined: 19 May 2010 Posts: 0
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Posted: Tue Jun 21, 2011 10:13 pm Post subject: |
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| Up2Admin wrote: | | -(-2)^2 would be positive 4 right? |
-2 x -2 = 4 x -1 = -4
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InternetIsSeriousBusiness Grandmaster Cheater Supreme
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Posted: Tue Jun 21, 2011 10:16 pm Post subject: |
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| Up2Admin wrote: | | -(-2)^2 would be positive 4 right? |
No
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Cryoma Member of the Year
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Posted: Tue Jun 21, 2011 11:14 pm Post subject: |
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| k thanks for the review.
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Evil_Intentions Expert Cheater
Reputation: 65
Joined: 07 Jan 2010 Posts: 214
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Posted: Tue Jun 21, 2011 11:37 pm Post subject: Re: uhhh is this right? |
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| Cryoma wrote: | I feel like a dummy for forgetting function values...
f(x) = -x^2 - x - 4
For f(-2)
f(-2) = -(-2)^2 - (-2) - 4
f(-2) = -4 + 2 - 4
f(-2) = -6
Am doin it write? |
PEMDAS
f(-2) = -(-2)^2 - (-2) - 4
f(-2) = 2^2 + 2 -4
f(-2) = 4 + 2 -4
f(-2) = 2
Parenthesis, Exponents, Multi & divi, add, subtract.
Up2 was right about it being -(-2)^2 being 4
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SGL Grandmaster Cheater
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Cryoma Member of the Year
Reputation: 198
Joined: 14 Jan 2009 Posts: 1819
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Posted: Wed Jun 22, 2011 12:02 am Post subject: |
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Uh you do what's in the parentheses first, but the - sign is outside and therefor comes after exponent.
I hope.
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SGL Grandmaster Cheater
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Posted: Wed Jun 22, 2011 12:06 am Post subject: |
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-1*-2^2
-1*4
-4
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Evil_Intentions Expert Cheater
Reputation: 65
Joined: 07 Jan 2010 Posts: 214
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Posted: Wed Jun 22, 2011 12:10 am Post subject: |
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| Cryoma wrote: | Uh you do what's in the parentheses first, but the - sign is outside and therefor comes after exponent.
I hope. |
Shit, I had Math my first semester, I completely spaced. It is -6..
Checked with calculator...all is well.
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Cryoma Member of the Year
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Posted: Wed Jun 22, 2011 12:13 am Post subject: |
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| wehw cause I been doin all my homework this way.
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Evil_Intentions Expert Cheater
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Posted: Wed Jun 22, 2011 12:14 am Post subject: |
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| Cryoma wrote: | | wehw cause I been doin all my homework this way. |
Yea, after the ACT my mind completely shut out all math haha.
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Cryoma Member of the Year
Reputation: 198
Joined: 14 Jan 2009 Posts: 1819
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Posted: Wed Jun 22, 2011 12:16 am Post subject: |
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Well I'm going for my associates degree in computer science so I need up to math 123, calculus and linear algebra.
Right now I'm doing a crash course in advanced algebra, precal, and trig so that I'm fresh come fall.
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