Ask Singapore Homework?

Upload a photo of a Singapore homework and someone will email you the solution for free.



Question

secondary 4 | A Maths
3 Answers Below

Anyone can contribute an answer, even non-tutors.

Answer This Question
Min Jia Lee
Min Jia Lee

secondary 4 chevron_right A Maths

O level 2016 question

Date Posted: 2 years ago
Views: 216

See 3 Answers

done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
Ayesha Aziz Alkaff
Ayesha Aziz Alkaff's answer
2 answers (Tutor Details)
1st
Hope it helps
done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
Guan Ri Oh
Guan Ri Oh's answer
118 answers (Tutor Details)
The first uploaded solutions approach part (ii) incorrectly. You first have to know that y=|ax^2+bx+c| is actually y=ax^2+bx+c with all its negative values reflected up about the y-axis. Next, you have to figure out which part of the curve was reflected by knowing how the y=ax^2+bx+c looks like, which is hinted by a>0.
done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
Guan Ri Oh
Guan Ri Oh's answer
118 answers (Tutor Details)