I got this one wrong to y=-2 cos(pie/2x+pie)
Amplitude is 2
Phase shift I had as -pie/4
What is the amplitude, period and phase shift?
I got the Period and Amplitude right.
|A| |2| =2 amplitude lies between -2 and 2 yaxis then vertical shift up 3 units
period is 2Pie I did 2pie/1 which is 2 pie.
Now for phase shift I did pie/2pie and on me answer page says answer is pie.
Im going off this formula http://www.math.utah.edu/~cashen/Tea...graph_0001.png
I think your amplitude is correct, but I think the phase shift is simply the additional factor within the sine function:
We don't know the period.
All we know is t = 2 t/T = x.
But we don't know so we cannot calculate the period.
All we can do is express T in the form T = (2 t)/x