[x] refers to the least integer function. It is defined by x = n, where n is the unique integer such that n − 1 < x ≤ n. In each case, provide the graph of ƒ , indicate the points of discontinuity and type of each (removable, jump, infinite, or none of these), and indicate whether ƒ is left- or right-continuous.

ƒ(x) = [x]