Help? Linear functions (coordinate geom) (1 Viewer)

[fatima96]

Hi everybody!
I was doing a HSC question 3 from 2005 and I need help with Q3c, ii.

http://www.boardofstudies.nsw.edu.au/hsc_exams/hsc2005exams/pdf_doc/maths_05.pdf

I feel so stupid I've forgotten all my linear functions concepts

 

[falsenthusiasm]

D lies on the AD and OC.

So you solve the equations of AD (part i) and OC (given) simultaneously.