Pearl labels a diagram of a charged capacitor as shown Which change would correct the error in the diagram? Changing +2Q to +Q. Changing +2Q to -2Q. Reversing the direction of the arrows Reversing the labels for the conductors and insulator

The horizontal blue line through the middle of the lens is called the optical axis. as the lamp is moved above or below the axis, keeping the horizontal distance to the center of the lens constant, how does the horizontal distance from the lens to the image change?