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April 19, 2024, 12:20:51 pm
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Author Topic: CSSA Trial 2012 - parabola question  (Read 2461 times)  Share 

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sarahtorrington

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CSSA Trial 2012 - parabola question
« on: August 11, 2016, 12:02:32 pm »
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Hi, I've come across a parabola question and I don't even know where to begin! I've looked at the answers but they're not making a whole lot of sense...
If anyone can help that would be greatly appreciated!

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jakesilove

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Re: CSSA Trial 2012 - parabola question
« Reply #1 on: August 11, 2016, 12:46:16 pm »
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Quote from: sarahtorrington on August 11, 2016, 12:02:32 pm
Hi, I've come across a parabola question and I don't even know where to begin! I've looked at the answers but they're not making a whole lot of sense...
If anyone can help that would be greatly appreciated!

(Image removed from quote.)

Hey! I think understanding this question was the tough part; after that, it's just about slogging through the maths! See my solution below :)



Jake
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sarahtorrington

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Re: CSSA Trial 2012 - parabola question
« Reply #2 on: August 11, 2016, 01:16:41 pm »
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Quote from: jakesilove on August 11, 2016, 12:46:16 pm
Hey! I think understanding this question was the tough part; after that, it's just about slogging through the maths! See my solution below :)

Thank you very much!
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jakesilove

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Re: CSSA Trial 2012 - parabola question
« Reply #3 on: August 11, 2016, 01:28:58 pm »
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Quote from: sarahtorrington on August 11, 2016, 01:16:41 pm
Thank you very much!

No problemo! Good luck with your study, let me know if there's anything else I can do!
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RuiAce

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Re: CSSA Trial 2012 - parabola question
« Reply #4 on: August 11, 2016, 01:45:26 pm »
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I will make a suggestion here.

Obtain a copy of the preliminary copy of Maths in Focus, and go through the example (in Ch 11) on page 646. This is a proof that you must be able to replicate on the exam either through on-the-spot analysis, or off by heart.

Compare the working out to that of which Jake provided. The textbook version does it for the parabola x2=4ay, however this one is for the sideways parabola.
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