An object is 34cm in front of a converging lens with a focal length of 17cm . Use ray tracing to determine the location of the image. Answer in cm

Question

An object is 34cm in front of a converging lens with a focal length of 17cm .  Use ray tracing to determine the location of the image. Answer in cm

anonymous · Answer

@theEric    can you help at all.

anonymous · Answer

i'm unsure of what formula to use. i just did the Diverging problem but converging it giving me some trouble.

anonymous · Answer

@alffer1    can you help with this

anonymous · Answer

|dw:1379612098505:dw| 

you can also find the answer by using 

$$\frac{ 1 }{ f } = \frac{ 1 }{ do} + \frac{ 1 }{ di }$$