A community for students. Sign up today!
Here's the question you clicked on:
← 55 members online
 0 viewing
 2 years ago
A curve has equation y= x^3+ 3x^2 9x+k, where k is a constant.
1/ write down an expression for dy/dx
2/ find the xcoordinates of the two stationary points on the curve.
3/ hence find the two values of k for which the curve has stationary point on the xaxis.
 2 years ago
A curve has equation y= x^3+ 3x^2 9x+k, where k is a constant. 1/ write down an expression for dy/dx 2/ find the xcoordinates of the two stationary points on the curve. 3/ hence find the two values of k for which the curve has stationary point on the xaxis.

This Question is Open

calculusfunctions
 2 years ago
Best ResponseYou've already chosen the best response.0I'm sure you know the power rule for derivatives. Right? So is there something specific about the problem that's perhaps troubling you?

Mubi
 2 years ago
Best ResponseYou've already chosen the best response.0Is the answer for no 1/ (1/4)x^4+x^3(9/2)x^2+k
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.