hmm im thinkin an aligned exam mark of 80s+...again being general coz it depends on the exam ...gordo said:wat about conics
and wat do u thin a mark of 80/120 would scale to?
and using PS=ePM and PS'=ePM' :. PS+PS'=e(MM')= 2a etcsub said:i herd 82 gets scaled to 90/100...but thats only hearsay at the moment...conics...learn it...im only learning parts of it, i think i can derive the formulas for tangents ect...just kno the basic e formula and the distance SP = ePM, where p is any point on the curve. goodluck ppl ...i know ill need it.