AQA Core 2 2.03 Using Differentiation: Finding Stationary Points and Determining their Types

[unknownname]

The saviour of A-Level maths students.

[hillyoxygen]

Absolutely awesome explanation Mr J Brown :)

[midopima]

How would you go about finding the y co-ordinates to accompany the x co-ordinates we’ve just found?

[coolfons]

Would the function not be y= 4/3x^3+ 4x^-1?

[JustBaileey]

I am trying to make sense of the second derivative. Am I correct to say that it represents the gradient after the stationary point.

Therefore, as the rule d^2y/dx^2 >0 is because the gradient is now increasing from its stationary point which tells us that the point is a minimum and vise versa with the max

[edwarda.]

When any number is rooted to an even number is it always plus or minus? what about when rooted to an odd number?

[hind]

That is alot of working for one question.