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definition for a parabola is that the distance from a given point (the focus) is always equal to the perpendicular distance to a given line (the directrix). so you use distance formula to a point P(x,y) from S and perpendicular distance to the line y= x-2, and equate them

i noticed this just by testing. same goes for Q6, none of the options were correct when i just subbed a random value for theta. does this mean you just remove the question when marking?

until the holidays before trials, 2-3 hours a week would have been an absolute max for me

personally i did practically nothing till the end of term 2 but i still did more maths than any other subject so it just depends on you. very heavily dependent on how much time you generally spend studying! 40% of your total study time seems fairly reasonable, although it's a lot easier to do...

thanks very much :D

because i'm going to get my course fairly easily then never care about my HSC again. whereas i thoroughly enjoyed sitting this exam

i care more about bos trials than HSC

so... when can we expect results? :P

Meanwhile I've racked up 101 hours playtime on csgo in the last 2 weeks...

actually only 2 are in year 12 in NSW

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well most of them are not to be taken seriously in the slightest

well i can't imagine you posting this if i got like 10 because that would just be rude so if anything you've made me more confident

which ones though

was waiting for a reply like this hahaha my confidence is unwavering!

i'm fairly certain i got either 21 or 22

there was an IMO kid there? O_O

oh in that case FUAARK

well considering Sy & Realise started with q16 i would be surprised if they didn't get near full marks

uhh no that doesn't work but come to think of it you are right that there should be more than just the circle. it works for the entire real axis except for -1 <= x <= 0