False, when bitcoin goes down, altcoins goes down too.
Nope, there are some alt coins that manage to gain value when bitcoin price goes down, not all alt coin follow the drop of bitcoin. Majority of alt coin may drop its price following the drop of bitcoin but certainly not all. If you look at coinmarketcap there are gainers in value when bitcoin drops on its price.
The prices are always following bitcoin's pattern, when did you see that altcoins are always going up?
Of course the market doesnt play that way, theres no such thing that a value of a coin will always increase hence it will drop and increase its value overtime.