Differentiation question (2 Viewers)

[YBK]

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

cool, we learnt the second derrivative today!

 

[YBK]

When f''(x) > 0, the curve is concave up.

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



I_F

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