Let
f(x)={(x^(2) if x<-1),(x if -1<=x<1),((1)/(x) if x>=1):}
For each of the numbers below, determine whether
f
is continuous at that point. If
f
is not continuous, determine whether
f
is continuous from the right, from the left, or neither. (a)
x=-1
(b)
x=1