Question

The graphs of the function F (left, in blue) and G (right, in red) are below. Let P(x)=F(x)G(x) and Q(x)=F(x)/G(x). Answer the following questions.
P'(1)
Q'(1)
P'(6)
Q'(6)

Answer 1

@AllTehMaffs

Answer 2

http://roy.math.umn.edu/webwork2_course_files/umtymp-calculus1-f13/tmp/gif/muzzammil-Q-raza-617-setDerivative_Rulesprob22image1.png is blue

Answer 3

http://roy.math.umn.edu/webwork2_course_files/umtymp-calculus1-f13/tmp/gif/muzzammil-Q-raza-617-setDerivative_Rulesprob22image2.png is red

Answer 4

i have this
F'(1)=0 F(1)=1
G'(1)=1 G(1)=2
F'(6)=1/4 F(6)=3
G'(6)=3 G(6)=3

Answer 5

That all looks right to me

Answer 6

is it saying you're wrong?

Answer 7

but i have to figure out P'(1) etc. i cant get those

Answer 8

So what do you think the first one, P'(x) would be?

Answer 9

I got P'(1)=1

Answer 10

the formula! numbers should always be an afterthought :) How did you get 1?

Answer 11

fg'+gf'

Answer 12

yup. F'(1) = 0, so it's just F(1)G'(1) = 1*3

Answer 13

g'(1)=1 not three

Answer 14

you're totally right. I misread. Then I'd think that's right. It says no?

Answer 15

all of them have to be right in order to get the point. so at least one of the others is wrong

Answer 16

Q'(1)=\[(gf'-fg')/(g^2)\]

Answer 17

i got -1/2

Answer 18

g^2 on the bottom

Answer 19

yeah

Answer 20

-1*1/(2^2) g(1) = 2

Answer 21

-1/4

Answer 22

never mind its -1/4

Answer 23

what about the other two P'(6) and Q'(6)

Answer 24

:)

Answer 25

What'd you get for em?

Answer 26

39/4, -11/12

Answer 27

I got 3/2 and -7/8 ...

Answer 28

but I'm way wrong, one sec. keep mixing things up

Answer 29

7/4 for the first 3/4 + 1

Answer 30

shouldnt it be 9+3/4

Answer 31

F'(1)=0 F(1)=1
G'(1)=1 G(1)=2
F'(6)=1/4 F(6)=3
G'(6)=3 G(6)=3

Answer 32

yeah, you're right. I'm terrible at this right now :P

Answer 33

so P'(6) is 39/4

Answer 34

the second one I got 1/12 - 1 but I'm wholly unreliable so far :P

Answer 35

yeah, 39/4 should be right

Answer 36

what about Q'(6)

Answer 37

I still got -11/12 just like you had

Answer 38

somethings is still wrong

Answer 39

G is red and F is blue, right?

Answer 40

yup

Answer 41

really wish that it would tell you if each part was right.... hmmmm...

Answer 42

I can find nothing wrong...

Answer 43

I'm sorry :(

Answer 44

oh well we tried. i go to a study session on mondays i will get it done their. thanks

Answer 45

Good luck. I'll keep staring at this for a sec to see if anything comes of it :/

Answer 46

Do you have to put inputs in an online form sort of thing?

Answer 47

yeah

Answer 48

did you try entering them as decimals? haha... hmm..

Answer 49

that doesnt matter

Answer 50

they worked on the other problem, so I figured that wasn't the problem