Find x co-ordinates of the turning points of a function

[druuuuuuuunnk]

Hi!

Find the x co-ordinates of the turning points of a function

Y=2x^3+36x-1

Determine the nature of the turning points.

I've been reading up on differentiation, I understand but I'm unsure what to do here. If someone could give me some helpful steps so I could learn to do this for my exam tomorrow I'd be grateful

Thanks

 

[gb7nash]

I've been reading up on differentiation, I understand but I'm unsure what to do here. If someone could give me some helpful steps so I could learn to do this for my exam tomorrow I'd be grateful

You tell me. What is the slope of a turning point of the graph?

 

[druuuuuuuunnk]

You tell me. What is the slope of a turning point of the graph?

Its the gradient? Its the solution of to find x that I'm confused about. Do I differentiate it to simply it? Is that the answer the questions for or what else should I be looking at to solve it.

 

[Mark44]

Start by answering gb7nash's question, then we can go from there.

 

[PAllen]

Its the gradient? Its the solution of to find x that I'm confused about. Do I differentiate it to simply it? Is that the answer the questions for or what else should I be looking at to solve it.

Seems like you're asking us to help you not read or listen in class (sorry). Ask (and look up) the following:

- what characterized a turning point?
- what determines whether it is min, max or saddle point?

Really, if someone does any more for you, they're just doing your work.

 

[druuuuuuuunnk]

Ok thanks, I look those things up. I appreciate the help.