See PhysChemTutor's answer to Dunelm's Secondary 3 A Maths Singapore question

done {{ upvoteCount }} Upvotes

clear {{ downvoteCount * -1 }} Downvotes

Date Posted: 2 years ago

Dunelm

2 years ago

Thank You.

2 years ago

Do take note that you'll need to show that k = -13/7 is rejected and also to give the reason why.