the graphs are horizontally and vertically compressed/expanded with shifts.... please help me.. i'm looking for a method which i should follow to find the equation... please ignore the cubic functions...

my teacher gave me a handout and it has a few sample questions... if u look at them u'll understand it better... plz explain me the method i need 2 follow.. thnx

see the attachment

IGNORE GRAPHS MADE BY THE PENCIL.. THE BLACK INK ARE THE QUESTIONS