a) a 2.40cm high insect is 1.30m from a 135mm focal length lens. Where is the image, how high is it, and what type is it (I got that the image is behind the lens by 151mm and -.278cm high and is real, inverted, and reduced.)
b) What if f=-135mm (I got that the image is in front of the lens by 122mm and .26cm high and is virtual, upright, and reduced.)
c) draw a ray diagram