The table and the graph show the relationship between the edge length, x, of a cube and its surface area, y. Is the relation a function? Edge Length, x Surface Area, y 1 6 2 24 3 54 4 96 A graph of a curve on a coordinate plane that goes up and to the right with edge length in units on the x axis and surface area in square units on the y axis. The curve begins at the origin and passes through the points 1 comma 6 and 2 comma 24 and looks like the right half of a U.