June 05, 2020, 10:59:48 am

### AuthorTopic: Methods Practice Question  (Read 412 times) Tweet Share

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#### jasminer99

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##### Methods Practice Question
« on: January 25, 2019, 10:40:56 pm »
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Hi I'm not really sure how to answer or go about answering the different parts of this question. Any guidance would be appreciated thanks!

#### MB_

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##### Re: Methods Practice Question
« Reply #1 on: January 25, 2019, 11:00:38 pm »
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a) You know the height of the arch is 9m, this gives b. You also have x intercepts of (10,0) and (-10,0), with this information you can solve for a in y=ax^2+b

b) C has the same x value as E so you can sub that value into the equation of the curve and find the coordinates for E. You should then be able to find the difference between the height of the man and the point on the arch

c) F and G have the same y value as H so you can sub that value into the equation of the curve like before. Once you have an x value you can find the required length
2015-16: VCE
2017-: BSci UoM - Maths & Psych