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junior college 1 | H2 Maths
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Candice
Candice

junior college 1 chevron_right H2 Maths chevron_right Singapore

Hello! How do i solve this qns?

Date Posted: 4 years ago
Views: 224

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Eric Nicholas K
Eric Nicholas K's answer
5997 answers (Tutor Details)
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Good afternoon Candice! Here are my workings for part i.
Chowder
Chowder
4 years ago
Can help me with my question ?
Eric Nicholas K
Eric Nicholas K
4 years ago
Unfortunately I have forgotten more than 90% of my JC/Uni stuffs already, with 100% of my statistics forgotten already (I last touched it 10 years ago) so I am unable to help you on the hypo test question.
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Eric Nicholas K
Eric Nicholas K's answer
5997 answers (Tutor Details)
Good afternoon Candice! Here is a discriminant of roots approach for this question. Maxima/minima approach is also possible as long as you can prove that the minimum point of the curve lies above the maximum point of the curve.
Candice
Candice
4 years ago
Thank you so much for the fast reply!!! :D
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Eric Nicholas K
Eric Nicholas K's answer
5997 answers (Tutor Details)
Good afternoon Candice! Here are my workings for parts iii and iv. For part iv, I deduced the conclusion by adding a graph of y = x3 to the graph we have drawn in part iii.
Candice
Candice
4 years ago
Thank you!!!