Question

Can someone check my work for an interval of increasing and decrease problem? It is attached below THANK YOU!

Answer 1

It is correct

Answer 2

Are my cps and first derivative test ok?

Answer 3

@Jhannybean ?

Answer 4

OOOO my gosh

Answer 5

wait that is the second derivative

Answer 6

I wrote the first derivative on my paper

Answer 7

f(x) is x^4-8x^3+18x^2-16x+5

Answer 8

Sorry!!!

Answer 9

Yeah.... you are right, i was doing it wrong.

Answer 10

It is OK!!! Thanks a bunch. When I am graphing it do you take the lowest y coordinate and use infinity to set the range?

Answer 11

I set my y min to -27 and y max to 100.

Answer 12

on your calc?

Answer 13

Yeah.

Answer 14

what about x values

Answer 15

-10 to 10 :)

Answer 16

I can actually see the graph!! thanks

Answer 17

...Yay!!!! :D

Answer 18

can my range be (infinity,5]

Answer 19

because 0,5 is my lowest coordinate

Answer 20

your lowest coordinate should be (4,-27) which is your local\absolute min

Answer 21

is that point even on my graph?

Answer 22

yeah can you see your entire graph? :o

Answer 23

yea. my lowest point is 0,5 on the calc as well lol

Answer 24

I put my original function in

Answer 25

(0,5) is a local min also, i think.

Answer 26

yea probably. He doesn't ask for it in this question though

Answer 27

if that is the case then is my answer acceptable

Answer 28

mmhmm :)

Answer 29

Thanks a bunch

Answer 30

Btw, which calc book are you using?It isn't stewarts is it?

Answer 31

calc of a single variable

Answer 32

early transcendental edition

Answer 33

I meant, who is the author? :D