You're standing 2.0 m horizontally from the edge of a 4.5 m-deep lake, with your eyes 1.6 m above the water surface. A diver holding a waterproof laser pointer at the lake bottom points the laser so you can see it. By what factor is the image magnified when an object is placed 1.7 focal lengths from a converging lens? Remember that magnification can be either positive or negative.