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June 17, 2019, 11:19:20 am

Author Topic: Mathematics Question Thread  (Read 535243 times)  Share 

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fun_jirachi

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Re: Mathematics Question Thread
« Reply #4260 on: June 12, 2019, 11:39:16 pm »
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Still not quite sure what you're asking but will do my best to answer :)

If ever in doubt, always plot some points. With sine curves (and trigonometric curves in general) multiples of pi/2 are always good x-values to test out, as they're usually the x-intercepts or turning points of the curve.

eg.


The curve is also the original sine curve compressed by a factor of two, stretched vertically by a factor of 3, then shifted up by 4 units. If you like, the amplitude gets tripled, the period gets halved and it gets shifted up 4 units. ie. x-values will line up with triple the y-value on the curve sin2x shifted up 4.

I hope this makes some sort of sense :)
« Last Edit: June 12, 2019, 11:42:12 pm by fun_jirachi »
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