lesterine's answer to Nancy Woods's Secondary 4 A Maths Singapore question.
done
2 Upvotes
clear 0 Downvotes
my answer is slightly different from answer key but i hope its correct… because i dont see how the answer key make sense. do clarify if needed!
Date Posted:
3 years ago
360 Tutoring Program
k < -4.
Either the teacher who prepared the answer key miscalculated the solution or forgot to type the negative sign in the software.
Normally for me, if I downvote answers, I usually do so not because solutions are wrong - in fact, I upvote logical solutions even if they are wrong.
If an answer is presented very sloppily with no explanation to the student, I would downvote that answer even if it is correct.