1. describe the transformation of the following function.

y= 3 cos ( -2( x + pi/6)) - 1

a) vertical stretch or compression

b) vertical reflection

c) horizontal stretch or compression

d) horizontal reflection

e) horizontal translation

f) vertical translation

2. state the following information of function

y= - sin (1/2(x - 2pi)) + 1

a) domain

b) range

c) amplitude

d) period

e) central horizontal axis

thank you so much the is a huge help