Question 1043053
 I have the question y= (2/3)tan(3x/4+pi)+4 Find the phase shift. 
The answer must lie in the interval [-h/2,h/2) where h is the period. I already know that the period is {{{4pi/3}}}. So that means the interval is between [-2pi/3,2pi/3) right? 
Correct::
I also know that without the interval restriction the phase shift is -4pi/3. 
After that though, I do not know what to do next. Can someone please help me.
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Note: [-2pi/3,2pi/3) is one period of the graph.
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{{{graph(400,400,-(2/3)pi,(2/3)pi,-4,8,(2/3)tan(3x/4+3.1416)+4)}}}
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Cheers,
Stan H.