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April 27, 2025, 06:41:38 pm
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Author Topic: Blakhitman's Questions!  (Read 11854 times)  Share 

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TrueTears

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Re: Blakhitman's Questions!
« Reply #90 on: June 20, 2010, 09:46:56 pm »
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mathematica ftw!
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the.watchman

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Re: Blakhitman's Questions!
« Reply #91 on: June 20, 2010, 09:47:44 pm »
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Quote from: brightsky on June 20, 2010, 09:45:22 pm
Wolfram Alpha ftw! :D

Quote from: Blakhitman on June 20, 2010, 09:46:18 pm
Bullshit it worked on there!

Wolfram alpha is my maths homework saviour :P
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stonecold

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Re: Blakhitman's Questions!
« Reply #92 on: June 20, 2010, 09:48:52 pm »
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Ever since the new 2.0 OS came out it's been so slow.  The features it has are awesome.

That is when it actually works. *sighs*

Everyone in my class has Classpads.  Sometimes they are better, and other times they are worse.

i.e. They can graph relations such as circles.  You can drag a function to graph it which is pretty cool.
     Then it does some stupid shit like not give simplified answers sometimes, or not giving trig answers in order when you solve, which is kinda important when a question asks for the first however many positive solutions.

Why can't these tools make a calculator that just works between them.
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the.watchman

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Re: Blakhitman's Questions!
« Reply #93 on: June 20, 2010, 09:55:27 pm »
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Actually, I'm yet to upgrade to 2.0, I don't really see the point :)
It's simpler in my opinion
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Remember, remember the 5th of November

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ATAR - 99.00+ plz... :)

Feel free to PM me for anything :D

Blakhitman

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Re: Blakhitman's Questions!
« Reply #94 on: June 20, 2010, 09:56:55 pm »
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Wolfram Alpha is actually amazing O.o. Click here!

Now if only I could find their iphone app cracked...I am not cheap btw, $3 isn't exactly "inexpensive".

Quote from: stonecold on June 20, 2010, 09:48:52 pm
Ever since the new 2.0 OS came out it's been so slow.  The features it has are awesome.

That is when it actually works. *sighs*

Everyone in my class has Classpads.  Sometimes they are better, and other times they are worse.

i.e. They can graph relations such as circles.  You can drag a function to graph it which is pretty cool.
     Then it does some stupid shit like not give simplified answers sometimes, or not giving trig answers in order when you solve, which is kinda important when a question asks for the first however many positive solutions.

Why can't these tools make a calculator that just works between them.

Thing is I'm still on 1.7(think) so it isn't because of the update.

lol these tools just want money and if there is a way that requires less time and thinking, then they will do it that way.
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stonecold

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Re: Blakhitman's Questions!
« Reply #95 on: June 20, 2010, 09:57:30 pm »
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The Tangent/Normal line functions are rather cool and time saving IMO.

You can also tell it to find Min, Max and inflection points too.
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Blakhitman

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Re: Blakhitman's Questions!
« Reply #96 on: July 15, 2010, 07:47:26 pm »
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when
when
when

therefore must have:

A. an x-intercept
B. local minimum
C. local maximum
D. point of discontinuity

No choice for P.O.I.
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Martoman

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Re: Blakhitman's Questions!
« Reply #97 on: July 15, 2010, 08:42:21 pm »
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On the SAC project im doing atm it says any electronic calculation device

So i take in the iphone with wolfram. It rocks.
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brightsky

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Re: Blakhitman's Questions!
« Reply #98 on: July 15, 2010, 09:55:16 pm »
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Quote from: Blakhitman on July 15, 2010, 07:47:26 pm

when
when
when

therefore must have:

A. an x-intercept
B. local minimum
C. local maximum
D. point of discontinuity

No choice for P.O.I.

A. It must touch the x-axis at x = 1.
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Yitzi_K

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Re: Blakhitman's Questions!
« Reply #99 on: July 15, 2010, 10:21:07 pm »
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Why?
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brightsky

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Re: Blakhitman's Questions!
« Reply #100 on: July 16, 2010, 12:40:12 am »
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Because the gradient is 0 there, implying some sort of turning point that makes the graph touch, if not cross through, x = 1.
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Yitzi_K

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Re: Blakhitman's Questions!
« Reply #101 on: July 16, 2010, 12:53:18 am »
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Still not getting it...

Take for example , that fulfills all of the conditions but does not have an x-intercept at x=1
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Blakhitman

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Re: Blakhitman's Questions!
« Reply #102 on: July 16, 2010, 06:52:45 am »
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Exactly what I thought Yitzi, I don't think the right answer is there.
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moekamo

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Re: Blakhitman's Questions!
« Reply #103 on: July 16, 2010, 07:13:45 am »
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A. it has an x intercept is the answer, the answer says nothing about crossing the axis at x=1, just that it had an intercept...
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Blakhitman

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Re: Blakhitman's Questions!
« Reply #104 on: July 16, 2010, 05:47:37 pm »
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There was a mistake, there's meant to be another option available, I'll find it out on Monday.

I think it'd be the missing option!
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