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secondary 3 | E Maths
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Amanda
Amanda

secondary 3 chevron_right E Maths chevron_right Singapore

hi!! how to do this?? I can’t do it because of the +3

Date Posted: 1 year ago
Views: 160

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sstrike
Sstrike's answer
5657 answers (A Helpful Person)
Wish the information in this sum picture will have you the idea to get all answers
Amanda
Amanda
1 year ago
thanks!
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sstrike
Sstrike's answer
5657 answers (A Helpful Person)
Conversion btw standard (general) form N vertex form

Ur question is given in
Vertex form already.
Since you have already identify the minimum point which is (2,3), the graph will be symmetrical at x=2.
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Cheng
Cheng's answer
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1st
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sstrike
Sstrike's answer
5657 answers (A Helpful Person)
Expand N simplify the vertex form given in the question. U will get standard form QE, based on the standard form, u can get the y-intercept point immediately to ensure the graph is correct.
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sstrike
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5657 answers (A Helpful Person)
Once you get y-intercept (0,7)
U can mirror this point along the symmetry line x=2 to get the other point with the same y coordinator as y - intercept

Based on these 2 points N vertex point , u can easily sketch out the QE curve accordingly.