Guan Ri Oh's answer to claire chen's Secondary 4 A Maths question.

done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
Guan Ri Oh
Guan Ri Oh's answer
118 answers (Tutor Details)
1st
I assume that this is the question you are looking at because I cant see the question numbers.

You do not have to draw f(x) if you want to save time, but it helps in seeing the part(s) of the curve you need to reflect about the x-axis.