AC Lim's answer to Sharif's Secondary 3 E Maths Singapore question.

done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
AC Lim
Ac Lim's answer
13088 answers (A Helpful Person)
1st
1st construct a table with -4≤x≤2. Use graph paper to indicate the point.