Sunday, September 12, 2010

Find Amplitude, and Period.



Theres not much I understand in Advanced Math, but on thing that I absolutely know is how to find Amplitude, and Period.

When finding Amplitude, period and the five points, the problem will look like so :
y = # cos # x OR y = # sin # x
To find Amplitude, just get the absolute value of the number before cos or sin.
y = -5 cos 8 x
the absolute value of -5 if 5. Amplitude is 5.

y = -234 sin 876 x
they absolute value of -234 is 234. Amplitude is 234.

To find the period, divide 2 pi by the number right before the x.
y = -24 sin 54 x
2pi/54 = pi/27
period is pi/27

y = -98 cos 90 x
2pi/90 = pi/45
period is pi/45

so YURP :D

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