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secondary 4 | A Maths
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Date Posted: 5 years ago
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Find dy/dx
Equate dy/dx=0
If no real solutions, hence there are no stationary points and thus no turning points
Equate dy/dx=0
If no real solutions, hence there are no stationary points and thus no turning points
Find gradient at x=4 using dy/dx found in (I) and hence find the equation of line PQ
y-8=gradient(x-4)
Coordinate of q could be found then
y-8=gradient(x-4)
Coordinate of q could be found then
(iii) integrate graph from 4 to zero and minus area of triangle
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