I. If a light ray travels perpendicular to the lens (horizontally) from the object to the lens, it bends to travel through the focal point after the lens.

II. If a light ray goes from the object through the center of the lens, it continues long in a straight line

III. If a light ray passes through the focal point on the same side of the lens as the object, it bends to come out traveling perpendicular to the lens (horizontally).

1. LABEL THE THREE RAYS (I, II, and III) IN THE DIAGRAM BELOW: