A graph titled change in temperature versus gravitational potential energy shows gravitational potential energy in kilojoules on the x-axis, numbered 0 to 50, and change in temperature in degrees celsius on the y-axis, numbered 0 to 12. The graph is a straight line from the (5, 1) and slants upward to (50, 11.5). Two additional points on the line are (10, 2.5) and (25, 6). Based on the graph, what kind of relationship exists between the change in temperature of the water and the gravitational potential energy of the cylinder? It is an inverse relationship. It is a direct relationship. It is an indirect relationship. It is a cyclic relationship.