l1[1:4]
4 in l1
l1.append(6)
l1.sort()
max(l1)
min(l1)
l2 = l1
a new list variable pointing to the same list as l1
l2 = l1[:]
or
l2 = [] + l1
return statement
change the list given as a parameter?
yes
l3 = l1 + l2