Ah, I see what you mean. I still doubt it though because if they wanted you to say that I think they would've asked something like 'describe the locus' to fk people over.nah because i didn't say y =/= 0 so it's not quite the same thing, it's like half the restriction
No, you won't lose marks for not writing the units.other than that everything looks good i think.
would i lose a mark for not writing the units in 12a)ii) ?
and in part 13ciii (parametrics), i only stated that y =/= 2a, i didn't say x =/= 0. would i lose a mark for this?
Difficult to say for this one because there are so many different methods.What would you expect marks to be allocated to for Q13 c) iii)?
I doubt you would lose a mark for that restriction.hmm so for the circle locus question (13 c. iii.) is the restriction on the locus x=/=0 ? if yes, would we lose a mark for not putting that restriction even if we got the equation of the circle?
100% then.No, you won't lose marks for not writing the units.
For the condition, you won't lose marks because you've shown what the Q has asked for, whihc is that Q lies on a fixed circle of radius a.
Difficult to say for this one because there are so many different methods.
I doubt you would lose a mark for that restriction.
It was along the same lines as braintic's method. I added a bit more justification because students often don't understand geometric arguments for solving loci problems.Is this 'other method' braintic's solution or subbing coordinates directly into the equation of the circle/showing SQ=a?