Discover the Truth Behind Relative Maximums: A Simple Max/Min Question

[duki]

When given a table listing x, x', and x'' which of the following are true?

if at critical #, second derivative is negative, # is a relative max
if at critical #, second derivative is positive, # is a relative max

Thanks!

 

[Snazzy]

These are yes or no questions. Read your book!

 

[duki]

sorry, I know it seems like I'm not trying.
I was reviewing notes for a test tomorrow and in one section I wrote the first one and then right below it I wrote the second one. If I weren't so pressed on time I would find it in my book but I'm really trying to get finished and get a good nights sleep. D:

 

[Dick]

Remember this. y=x^2. Second derivative=2. x=0 is a min. y=-x^2. Second derivative=(-2). x=0 is a max.

 

[duki]

all right! thanks.