How does crossing the International Date Line affect the narrator in Homesico
it causes her to feel hestant
It confuses her sense of time
It gives her a sense of progress
It causes her to feel relaxed

. a function is a relation in which each input has only one output. in the relation , y is a function of x, because for each input x (1, 2, 3, or 0), there is only one output y. x is not a function of y, because the input y = 3 has multiple outputs: x = 1 and x = 2.