Pang Jiacheng's answer to Emma's Secondary 4 A Maths question.
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Hi Emma,
so firstly we would need to establish that this graph is a maximum point graph.
a). after we find the solution for t @ maximum point using differentiation, we would just subsitute it inside the quation and realise maximum point is below 2.5
b) find the t in terms of a. using differentiation and then substitute it inside the original equation 1 to solve for a:).
hope this helps, just ask if anything is unclear or wrg:)
so firstly we would need to establish that this graph is a maximum point graph.
a). after we find the solution for t @ maximum point using differentiation, we would just subsitute it inside the quation and realise maximum point is below 2.5
b) find the t in terms of a. using differentiation and then substitute it inside the original equation 1 to solve for a:).
hope this helps, just ask if anything is unclear or wrg:)
Date Posted:
6 years ago
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