Got Homework?
Connect with other students for help. It's a free community.
Here's the question you clicked on:
 0 viewing
gnarballs
Group Title
CALCULUS HELP
(1 pt) Consider the function f(x) = 2 x^3  5 x on the interval [ 2 , 2 ]. Find the average or mean slope of the function on this interval. By the Mean Value Theorem, we know there exists at least one c in the open interval ( 2 , 2 ) such that f'( c) is equal to this mean slope. For this problem, there are two values of c that work. The smaller one is= and the larger one is= i found the mean slope=3 but cannot get the values where f'(c) is equal to 3.... tried setting the derivative equal to three but that doesnt yield the right answer, or im not working it out right....please
 2 years ago
 2 years ago
gnarballs Group Title
CALCULUS HELP (1 pt) Consider the function f(x) = 2 x^3  5 x on the interval [ 2 , 2 ]. Find the average or mean slope of the function on this interval. By the Mean Value Theorem, we know there exists at least one c in the open interval ( 2 , 2 ) such that f'( c) is equal to this mean slope. For this problem, there are two values of c that work. The smaller one is= and the larger one is= i found the mean slope=3 but cannot get the values where f'(c) is equal to 3.... tried setting the derivative equal to three but that doesnt yield the right answer, or im not working it out right....please
 2 years ago
 2 years ago

This Question is Closed

ksaimouli Group TitleBest ResponseYou've already chosen the best response.2
u mena find the equation of tangent line?
 2 years ago

ksaimouli Group TitleBest ResponseYou've already chosen the best response.2
dw:1353882845431:dw
 2 years ago

gnarballs Group TitleBest ResponseYou've already chosen the best response.0
i dont think so... i need to find where f' is = to the mean slope(3) on the interval (2,2)..tried setting f' =3 but with no luck
 2 years ago

ksaimouli Group TitleBest ResponseYou've already chosen the best response.2
ok it means the same ok so use the formula above
 2 years ago

ksaimouli Group TitleBest ResponseYou've already chosen the best response.2
find derivative first
 2 years ago

ksaimouli Group TitleBest ResponseYou've already chosen the best response.2
what did u get
 2 years ago

ksaimouli Group TitleBest ResponseYou've already chosen the best response.2
now calculate dw:1353883173646:dw
 2 years ago

ksaimouli Group TitleBest ResponseYou've already chosen the best response.2
set the derivative=3 solve for x
 2 years ago

gnarballs Group TitleBest ResponseYou've already chosen the best response.0
awesome, found my mistake...thank you man
 2 years ago

ksaimouli Group TitleBest ResponseYou've already chosen the best response.2
what did u get?
 2 years ago

gnarballs Group TitleBest ResponseYou've already chosen the best response.0
1.1545, 1.1545
 2 years ago

ksaimouli Group TitleBest ResponseYou've already chosen the best response.2
yup u got it yup
 2 years ago

ksaimouli Group TitleBest ResponseYou've already chosen the best response.2
anymore question>
 2 years ago

gnarballs Group TitleBest ResponseYou've already chosen the best response.0
yes .. (1 pt) Consider the function f(x) = 1/x on the interval [ 1 , 10 ]. (A) Find the average or mean slope of the function on this interval.  i found it to be .1 (B) By the Mean Value Theorem, we know there exists a c in the open interval ( 1 , 10 ) such that f'( c) is equal to this mean slope. Find all values of c that work and list them (separated by commas) in the box below.  i set 1/x^2 = .1 and got 3.1622 and 3.1622 but it doesnt accept those as answers
 2 years ago

gnarballs Group TitleBest ResponseYou've already chosen the best response.0
ok i had to use only the positive one since it was in the interval given........thank you for your help..... have an awesome day !
 2 years ago
See more questions >>>
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.