g(x) = x2 is not 1-1 since 1 6= 1 but ( 1)2 = 12. Horizontal Line Test: If every horizontal line intersects the graph of a function f in at most one point, the f is one-to-one.
Tunica is a town in Tunica County, Mississippi, near the Mississippi River. Until the early 1990s the town was one of the most impoverished places in the United States, semi-famous for the particularly deprived neighborhood known as Sugar Ditch Alley, named for the open sewer located there.
Unlike the area including casinos along Mississippi's Gulf Coast region, Tunica was not in the path of Hurricane Katrina. As a result, some of the regular Gulf Coast customer traffic from casinos drifted northward to Tunica County.