Mike King

08:02

This one may of kind of specific but can you do one where we find a point in a plane that is closest to some other point outside of the plane?

Peter

08:54

yes

Mike King

16:21

Yes kinda

Braden Trejo

16:22

where did fxy come from

Peter

16:24

so right now we just have the critical point, right? We don't actually know if it's a min or max yet right?

Max Hansen

16:34

Yes this is helpful

Lexie Isbell

16:46

What would you do if you were trying to get close to a different point?

Braden Trejo

18:08

kind of

Braden Trejo

18:18

I was wondering why z is multiplied to y^2

Peter

19:47

yeah

Mike King

20:36

Could we also do like a maximization story problem?

Griffin Izu

20:42

^

Braden Trejo

24:32

I think it is positive x

Peter

24:49

Don't we need to test to find out if it's actually a minimum though?

Peter

26:32

Wouldn't the gradient also be zero at a maximum though?

Lexie Isbell

28:06

These x,y,z values don't add up to one

Peter

28:08

okay

Peter

33:51

got it

Lexie Isbell

38:48

Yeah that helps

Mike King

40:24

yes

Griffin Izu

40:27

ye

Griffin Izu

43:51

oh cause in 3d there’s 8 spaces

Griffin Izu

43:53

right

Jaymee Knutson

01:21:00

Hey guys! My prof emailed this link out for an exam review, is that what's going on, or are these regular office hours?

Jaymee Knutson

01:21:35

Okay, gotcha. Thanks!

Max Hansen

01:30:18

I believe that 1 in the answer because +-1 ,0 and 0<+-1 are critical points

Max Hansen

01:30:52

And if you plug it into f it is bigger than 2/3 so it is the max

Connor Moran

01:31:09

How do you get 0 and 1 as critical points??

Max Hansen

01:32:09

from x^2 =y^2

Max Hansen

01:32:40

Because x an and y can be both 1 and 0

Connor Moran

01:32:56

Ahhh ok thanks

Max Hansen

01:42:23

me