Ask Singapore Homework?

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



Question

secondary 2 | Maths
One Answer Below

Anyone can contribute an answer, even non-tutors.

Answer This Question
Amanda
Amanda

secondary 2 chevron_right Maths chevron_right Singapore

Pls help, would be great if you could explain it too! thanks in advance!!

Date Posted: 4 years ago
Views: 250

See 1 Answer

They're trying to trick you with the equation. The reason why there's no -7 on the left hand side is because they have just added it to the 5 on the other side to make it 12. So essentially, they are the equations of the 2 graphs shown above.

Now intuitively, the equal sign between the two equations should imply points where the y values of both graphs are the same - these would be the points of intersection of the two graphs shown above, and what they mean by the 'solutions' is that they want the x values for the two points of intersection.

So in layman's terms, just find the x coordinates of the 2 points where the graphs cross each other and you should be fine for the rest of the question :)
done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
Nalin Sharma
Nalin Sharma's answer
35 answers (Tutor Details)
1st
Amanda
Amanda
4 years ago
Thank you for the explanation... I think I got it now
Nalin Sharma
Nalin Sharma
4 years ago
Happy to help!