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secondary 4 | E Maths
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Sonia
Sonia

secondary 4 chevron_right E Maths chevron_right Singapore

How do u find min. point? (b) Thank yiu

Date Posted: 5 years ago
Views: 487
Hao Wei
Hao Wei
5 years ago
Line of symmetry= (-1+3)/2 =1
∴ x=1

(x-1)(x+3)= x²+2x-3
=(x+1)² -4
∴ Coordinates of minimum point = (-1,-4)

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Gan Yi Zhe
Gan Yi Zhe's answer
5 answers (Tutor Details)
1st
Hope the above is clear
Line Of symmetry equation : x = -1
Coordinate of min point = (-1,-4)