A community for students. Sign up today!
Here's the question you clicked on:
 0 viewing
 2 years ago
Determine the points on each curve that correspond to the given slope of the tangent.
y=(2x1)(4+x^2), m=3
 2 years ago
Determine the points on each curve that correspond to the given slope of the tangent. y=(2x1)(4+x^2), m=3

This Question is Closed

IsTim
 2 years ago
Best ResponseYou've already chosen the best response.0My final answers are (4/3,3.703) and (1,9). The correct answers are (1.53,3.42) and (1.20,8.70)

dumbcow
 2 years ago
Best ResponseYou've already chosen the best response.1don't understand the question are there 2 functions?

IsTim
 2 years ago
Best ResponseYou've already chosen the best response.0Only one function, but the slope is 3.

dumbcow
 2 years ago
Best ResponseYou've already chosen the best response.1ok so set dy/dx = 3 dy/dx = 2(x^24) + 2x(2x1) = 3 > 6x^2 2x 11 = 0 use quadratic formula to get x_coordinates

IsTim
 2 years ago
Best ResponseYou've already chosen the best response.0That's what I think did, but I got the answer wrong.

dumbcow
 2 years ago
Best ResponseYou've already chosen the best response.1check your computation of quadratic formula...the above function gives correct xvalues...1.197, 1.53

IsTim
 2 years ago
Best ResponseYou've already chosen the best response.0Well. Here's what I did and results: Found dy/dx=6x^22x8. Factored out 2 so 0=2(3x^2x4) Oh, didn't do quadratics. Slip of the mind, sorry. Factored the equation so x=4/3 amd x=1.

dumbcow
 2 years ago
Best ResponseYou've already chosen the best response.1oh i see...the only part that is wrong is you assumed it equaled 0 but RHS should be 3 6x^2 2x 8 = 3 then factoring out the 2 doesn't really help

IsTim
 2 years ago
Best ResponseYou've already chosen the best response.0Ok. I'll try that. Thanks. I'll Be off for 15 minutes.
Ask your own question
Ask a QuestionFind more explanations on OpenStudy
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.