Aussie High School Year 11-12?

I'm currently in year 10 at a distance education high school in Australia (I'm 16) and I heard somewhere that next year (Year 11) and the year after that (Year 12) Maths isn't compulsory. I asked my math teacher and she said this was correct. I was just wondering, is everything else compulsory? Like geography and stuff? I know that english is compulsory but is that the only one? My friend said that we get to choose what we want to do? Please help!! Also, if English is the only mandatory subject, do you have to do anything else? or do you just turn up to school and do english?