A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 3 years ago
How do I isolate the x in y = 4x  x^2?
anonymous
 3 years ago
How do I isolate the x in y = 4x  x^2?

This Question is Closed

hartnn
 3 years ago
Best ResponseYou've already chosen the best response.3why do you need to isolate x from there ?

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0I need to express the function in terms of y

IsTim
 3 years ago
Best ResponseYou've already chosen the best response.0Maybe it's just really late....but isn't that already "y"?

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0...ok i meant in terms of x then whoops

IsTim
 3 years ago
Best ResponseYou've already chosen the best response.0Oh. Ha ha. Made me confused.

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0basically i need to turn it into a "x=" form instead of "y="

IsTim
 3 years ago
Best ResponseYou've already chosen the best response.0Herrhhh....What grade/course level is this?

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0I actually need this for a calculus proble, but I'm having a brain fart.

IsTim
 3 years ago
Best ResponseYou've already chosen the best response.0OH..so ln and e^x and all that?

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0i need to find the radii of the "outer circle" and "inner circle" of the cross section that looks like a donut, so in order to express the radius in terms of the equation, i need it in terms of "x="

IsTim
 3 years ago
Best ResponseYou've already chosen the best response.0Or do you have to do derivatives too?

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0I'm using integrals because I need to find the volume of a graph rotated around the y axis

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0why dont you just complete a square

IsTim
 3 years ago
Best ResponseYou've already chosen the best response.0Wait..does that diagram incldue x,y, z planes, or is that just 2D?

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0It should be 3D. Okay, the reason why I'm asking this "x isolation" question is because I need to find the volume of the graph of y = 4x  x^2 rotated around the yaxis and bounded by y=0.

hartnn
 3 years ago
Best ResponseYou've already chosen the best response.3completing the square will do it., do you know how to ?

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0That's the whole problem I'm working on right now.

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0I tried using the quadrative formula, but I got a numerical answer. Am I using it wrong? I'm having a big brain fart right now T_T

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0if you ever need to solve a quadratic just complete a square

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0in this case you need to solve for x, so complete a square to do it o_o

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0I'm not trying to solve it though. I need to have the x isolated :( Solvng it gives me a numerical answer.

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0I feel really stupid right now lol

IsTim
 3 years ago
Best ResponseYou've already chosen the best response.0Hey, don't say that, or I'll feel stupid for not remembering anything.

hartnn
 3 years ago
Best ResponseYou've already chosen the best response.3let me give you first few steps.... y= 4xx^2 = (x^24x+44) y = (x2)^24 now can you isolate 'x' ?

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0they condition us to grow accustomed to f(x)! f(y) is just as important =[

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0GOD BLESS YOU HARTNN lol

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0Thank you everyone, I've got it now :) haha
Ask your own question
Sign UpFind 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.