Question

I have another Calculus question can anyone help me?

Answer 1

whats the q

Answer 2

question

Answer 3

Derivative

Answer 4

On what intervals are f increasing, decreasing, at what values does x have a max value, and min value, concavity upward downward...

Answer 5

but it should be easy looking at the graph, im just not for sure what im looking for.

Answer 6

ok, refer, application of derivative, thomas calculus. jk.

Answer 7

lol...nice

Answer 8

if f' changes from negative to positive at c,then f has a local minimum,

Answer 9

so 1 and 8 are minimum

Answer 10

at 3 and 7.

Answer 11

ok max would be 2 and 5?

Answer 12

and f' changes from positive to negative then f has a local maximum. at 2 and 5.

Answer 13

alright i see, now at what points is the function concave?

Answer 14

concave up on an open interval i if f' is increasing on i.
concave down on a open interval i if f' is decreasing on i.

Answer 15

for concavity we have to take the double derivative. tbh i studied this a month ago.

Answer 16

ok i understand how to get it without a graph, but by looking at it?!

Answer 17

yes.its difficult for me too. this requires a deeper understanding of the subject. btw i am studying scientific computing.

Answer 18

also when it f increasing and decreasing... its increasing at 0,2 and 7,9...

Answer 19

haha ok, are designing software to answer all my derivative problems???? lol

Answer 20

because that would be awesome!!

Answer 21

you,got me. i was also trying to understand. yes. it is increasing between 0-2 and 7-9 .btw very curious which book do you refer for calculus.

Answer 22

so it is concave up between intervals 0-2 and 7-9.

Answer 23

because f' is increases.

Answer 24

increasing.

Answer 25

james stewart essential calculus... are you in cal 2?

Answer 26

no, i use only thomas' calculus. its good to know. i check that book in the lib tomorrow.

Answer 27

no its not concave up between those intervals, because i already tried and the homework software told me it was incorrect.

Answer 28

ok.concave down. :p

Answer 29

ha... are you just guessing?!

Answer 30

yes.i was wondering how much you know about co-ordinate geometry. i had a question.

Answer 31

well i could give it a shot?

Answer 32

the ellipse is special type of parabola , the equation of the circle is x^2 + y^2 = 2. then how is the equation of the ellipse x^2/a^2 + y^2/b^2 = 1.

Answer 33

x^2 + y^2 = R^2

Answer 34

are you given a multiple choice or is this straight short answer?

Answer 35

straight short answer. my teacher to me to find about the ellipse.tell me something about ellipse?

Answer 36

this was done like 4 year ago and i dont remember anything.

Answer 37

told me to find about?

Answer 38

the ellipse.

Answer 39

ok well you know a circle has one radius... an ellipse has two focus points

Answer 40

yes

Answer 41

whats the question

Answer 42

ok. thanks.

Answer 43

i understood after seen this video. http://youtu.be/7UD8hOs-vaI

Answer 44

like 2 focal points.

Answer 45

ok bye,nice talking to you, sorry couldn't help you much.