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Mathematics 17 Online
OpenStudy (jojokiw3):

When graphing this equation, where do I put this part of it?

OpenStudy (jojokiw3):

\[y = 2+3 \sin [3(x-\frac{ \pi }{ 4 })]\] What do I do with the second 3?

OpenStudy (anonymous):

@SoullessEyes

OpenStudy (jojokiw3):

@zepdrix

OpenStudy (jojokiw3):

So 2 is the center line, 3 is the amplitude, pi/4 is the phase angle. What's the 3 in front of the x?

zepdrix (zepdrix):

Sounds right so far! :) \[\large\rm y=A \sin[B(x-C)]+D\]A gives us amplitude, B gives us period in this way \(\rm Period=2\pi/B\), C is our phase shift, D moves the center line,

OpenStudy (jojokiw3):

Oo, what's period?

zepdrix (zepdrix):

It's the amount of time it takes for the sine function to complete one full cycle. Or in this case it would maybe be more appropriate to say, the amount of x for sine to complete a full cycle, to get back to it's starting point.

OpenStudy (jojokiw3):

So is it like the "distance" from one high point to the next?

zepdrix (zepdrix):

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