1. 21/4 , you can use a calculator it’s way easier because your doing times
Answer:
C ( 8,-6)
Because you move the points according to the rule.
Its the last one! Also if you dont know what I mean by this is, its the 4th one. You Welcome Merry Christmas
Equate whats inside (arguments)
with base period of sine function
and solve for x to get period,

So the period of the graph of the given function is precisely 2.
Hope this helps :)