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Differentiation question (1 Viewer)

Y

YBK

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apak said:
YBK
while your at it you might want to know:
f'(x) = y = dy/dx (all notations) = m (gradient) = 0 (at stationary points)
f''(x) = second derivative - shows the concavity of the curve when is positive it is concave down i think i was and concave up for the other one.. or the other way round = 0 at point of inflection (that is no concavity
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cool, we learnt the second derrivative today!

:D
 
Y

YBK

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insert-username said:
When f''(x) > 0, the curve is concave up.

When f''(x) < 0, the curve is concave down.



I_F
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yup, i found that kinda confusing at first... but i get it now :)
 
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