What is the period of the graph of y = 1/2 sin (2 pi x) – 3?

Any is very appreciated! (picture is provided below)not sure how to do this at all won't lie

Given the graphed function below which of the following orders pairs are found on the inverse function

Graph the line that represents a proportional relationship between d and t with the property that an increase of 33 units in t corresponds to an increase of 44 units in d. what is the unit rate of change of dd with respect to t? (that is, a change of 11 unit in t will correspond to a change of how many units in d? )