Ask Singapore Homework?

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



Question

secondary 4 | A Maths
One Answer Below

Anyone can contribute an answer, even non-tutors.

Answer This Question
Chelsea
Chelsea

secondary 4 chevron_right A Maths chevron_right Singapore

Pls help with q6 thanks!

Date Posted: 4 years ago
Views: 260

See 1 Answer

done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
Nalin Sharma
Nalin Sharma's answer
35 answers (Tutor Details)
1st
Handwriting and graphs are a bit messy in the last part but the gist of it is that the positive line above the x axis should intersect the graph at 4 points, since the part above the x axis is shorter than the part below, kinda making it the "limiting reagent" deciding the solution to this question.

Also, in the second graph for the last part, the line -0.5 passes over the original graph without intersecting, in case that wasn't clear there. :)
Nalin Sharma
Nalin Sharma
4 years ago
Passes over without intersecting in the end* - allowing for 8 solutions and not 9.
Eric Nicholas K
Eric Nicholas K
4 years ago
Perhaps a snapshot from Desmos online graphing calculator would be good for explanation purposes
Nalin Sharma
Nalin Sharma
4 years ago
Yes definitely, that would probably be more helpful than some 2 min doodles for sure. I'll upload some later in the night if noone has done so yet.