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April 13, 2026, 11:04:20 pm
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Author Topic: VCE Methods Question Thread!  (Read 6017427 times)  Share 

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keltingmeith

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Re: VCE Methods Question Thread!
« Reply #5175 on: June 17, 2014, 09:19:56 pm »
+2
Don't suffer brain damage between now and then!

Unless it's the kind where you can get someone else to fill in a special VCAA form. :P
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Rod

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Re: VCE Methods Question Thread!
« Reply #5176 on: June 17, 2014, 10:00:21 pm »
+1
aww sorry guys one more question, I promise:

http://www.vcaa.vic.edu.au/Documents/exams/mathematics/2006mmcas1-w.pdf

q 9a,

it's just a one marker :)
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2013-2014:| VCE
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keltingmeith

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Re: VCE Methods Question Thread!
« Reply #5177 on: June 17, 2014, 10:04:41 pm »
+3
Area of a rectangle is length * width, so if we say that the length is the x axis and the width is the y-axis, we can see from the diagram that:


Since b = f(a), we get:

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kinslayer

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Re: VCE Methods Question Thread!
« Reply #5178 on: June 17, 2014, 10:05:18 pm »
+4
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Rod

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Re: VCE Methods Question Thread!
« Reply #5179 on: June 17, 2014, 10:16:32 pm »
+1
Still don't get it sorry. I don't get how you get the width and length of the rectangle.
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2013-2014:| VCE
2015-2018:| Bachelor of Science (Neuroscience) @ UoM
2019-X:| Doctor of Dental Surgery (discontinued)
2019 -2021:| Master of Physiotherapy

Currently: Physiotherapist working at a musculoskeletal clinic. Back pain, sore neck, headaches or any other pain limiting your study? Give me a PM (although please do see your personal health professional first!)

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Rod

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Re: VCE Methods Question Thread!
« Reply #5180 on: June 17, 2014, 10:19:05 pm »
+1
Shouldn't it be 2a x b?
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2013-2014:| VCE
2015-2018:| Bachelor of Science (Neuroscience) @ UoM
2019-X:| Doctor of Dental Surgery (discontinued)
2019 -2021:| Master of Physiotherapy

Currently: Physiotherapist working at a musculoskeletal clinic. Back pain, sore neck, headaches or any other pain limiting your study? Give me a PM (although please do see your personal health professional first!)

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kinslayer

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Re: VCE Methods Question Thread!
« Reply #5181 on: June 17, 2014, 10:20:30 pm »
+3
Quote from: Rod on June 17, 2014, 10:19:05 pm
Shouldn't it be 2a x b?

Yeah it is 2a * b, but like EulerFan said, b is the y-value of the curve at x=a, so 
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Rod

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Re: VCE Methods Question Thread!
« Reply #5182 on: June 17, 2014, 10:20:45 pm »
+1
Ok, nearly fully understood

Just need to know how we get 9-3a^2
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2013-2014:| VCE
2015-2018:| Bachelor of Science (Neuroscience) @ UoM
2019-X:| Doctor of Dental Surgery (discontinued)
2019 -2021:| Master of Physiotherapy

Currently: Physiotherapist working at a musculoskeletal clinic. Back pain, sore neck, headaches or any other pain limiting your study? Give me a PM (although please do see your personal health professional first!)

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keltingmeith

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Re: VCE Methods Question Thread!
« Reply #5183 on: June 17, 2014, 10:23:36 pm »
+3
That's the equation of the parabola - the upper points of the rectangle lie on the parabola, so we just sub the value of a into the parabola to get those points.
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Rod

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Re: VCE Methods Question Thread!
« Reply #5184 on: June 17, 2014, 10:25:36 pm »
+1
Ok, yep, got it. Thanks so much!

You guys are awesome!

I've only started using this thread like a couple of days ago and It's so useful, thanks to you guys. Do you guys mind if I post questions regularly? Every question I asked today, and yesterday I had saved for my teacher this morning at school, unfortunately she was unable to answer any of them.

*Stares at the question for 3 minutes*
'Oh, this question is a little bit difficult, I'll get back to you Rod'

But Lol she never does.

It's really frustrating and in my opinion the only way to improve in maths is to spot questions you can't do and figure out where you are going wrong. My teacher can't really help me with this but you guys are thank you
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2013-2014:| VCE
2015-2018:| Bachelor of Science (Neuroscience) @ UoM
2019-X:| Doctor of Dental Surgery (discontinued)
2019 -2021:| Master of Physiotherapy

Currently: Physiotherapist working at a musculoskeletal clinic. Back pain, sore neck, headaches or any other pain limiting your study? Give me a PM (although please do see your personal health professional first!)

Any questions related to pathways towards studying dentistry or physiotherapy? Gimmi a PM!

Zealous

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Re: VCE Methods Question Thread!
« Reply #5185 on: June 17, 2014, 10:30:24 pm »
+5
Quote from: Rod on June 17, 2014, 10:25:36 pm
Do you guys mind if I post questions regularly?
That's what this thread is for! :D

Feel free to post things that you need help and we'll try our best to get back to you.

Good work Euler and Kinslayer - you guys have been really helpful recently (and ninja like in responding to questions).
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vce:
2013: Further [50] (+Premier's) | Methods [48]
2014: Physics [50] | Specialist | Accounting | English Language || ATAR: 99.70 + Australian Student Prize!
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2015: Bachelor of Commerce and Engineering (Honours)

keltingmeith

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Re: VCE Methods Question Thread!
« Reply #5186 on: June 17, 2014, 10:30:53 pm »
+3
Yeah, that's fine. I honestly love the fact that you come back saying, "I don't understand why you've done this" as well - you're like my dream student Rod, hahah. :P

Besides - the other people get benefit from looking at the questions and solutions here, and get practice from them, too. In fact, sometimes I snitch questions from AN users to hand to my students when I get lazy... >.> <.<
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Reus

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Re: VCE Methods Question Thread!
« Reply #5187 on: June 18, 2014, 07:53:08 pm »
+1
Is this true?


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keltingmeith

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Re: VCE Methods Question Thread!
« Reply #5188 on: June 18, 2014, 07:55:18 pm »
+1
Yes it is - refer to exponential rules:

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TrueTears

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Re: VCE Methods Question Thread!
« Reply #5189 on: June 18, 2014, 08:19:04 pm »
+1
Quote from: EulerFan101 on June 18, 2014, 07:55:18 pm
Yes it is - refer to exponential rules:


This will not hold consistently if is a negative real.

In such cases, it is necessary to define the complex logarithm.
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