Question

Trigo Question

Answer 1

@experimentx, the questino is still open. I jsut closed it so its just you

Answer 2

amplitude: 3
timeperiod: pi
horizontal shift: pi/4 left
vertical shift: +3
and in opposite direction that cos(x)

Answer 3

http://www3.wolframalpha.com/Calculate/MSP/MSP8631a14113e635if41i000012fdge40bf001c5g?MSPStoreType=image/gif&s=11&w=425&h=192&cdf=RangeControl

Answer 4

ty:)

Answer 5

wait ... i need to confirm.

Answer 6

ok

Answer 7

I think we have been doing something incorrectly
http://www4b.wolframalpha.com/Calculate/MSP/MSP53251a140e4hg74f7d1i00004idif6c2if29a994?MSPStoreType=image/gif&s=19&w=399&h=192&cdf=RangeControl

Answer 8

I must say that the displacement is opposite.

Answer 9

really?

Answer 10

can you see above picture??

Answer 11

Yes

Answer 12

the best way to describe y = -cos(x) from y = cos(x) is
the graph is
Horizontal shift = Period/2
Since we have pi/4 as shift (left), I think the correct thing to say would be

Horizontal shift: period/2 - pi/4 = pi/2 - pi/4 = +pi/4

Answer 13

http://www4b.wolframalpha.com/Calculate/MSP/MSP12971a1411e86e9g071f00001b5391dcg339cd5f?MSPStoreType=image/gif&s=2&w=406&h=192&cdf=RangeControl

Answer 14

Ohh ok. Thank you @experimentx!

Answer 15

Correct all answers where you have -Cos(...)
add Period/2 to all.