Ask Experts Questions for FREE Help !
Ask
    ineedcalchelp's Avatar
    ineedcalchelp Posts: 5, Reputation: 1
    New Member
    		  
    #1

    Sep 27, 2007, 06:38 PM
    finding vertical tangent line
    how do you find a vertical tangent line of the function when x = (?)

    (x^3) - xy + (y^3) = 10
    Vi Nguyen's Avatar
    Vi Nguyen Posts: 48, Reputation: 2
    Junior Member
    		  
    #2

    Apr 19, 2009, 04:35 AM
    Use implicite differentiation to get the derivative of the function, also re-arrange the original equation to make y the subject and sub that in for y in the differentiated equation. Now that you have the gradient function in terms of x, for a verticle tangent the denominator of the function has to be zero as the gradient is infinite. So find the values for x to make the denominator equal to zero and you have your x values, sub into original equation to find the y points and Voilą!! Hope that helps ;p
Not your question? Ask your question View similar questions
 

Question Tools Search this Question
Search this Question:

Advanced Search


Check out some similar questions!

Finding a vertical tangent when x = ? [ 1 Answers ]

I found the dy/dx. But how do you find a vertical tangent line? And how do you find a vertical tangent when x = (?)?

Finding a vertical tangent when x = ? [ 1 Answers ]

(x^2) - xy + (y^3) = 10 has a vertical tangent when x = ? I believe I have to take the derivative, by implicit differentiation, but I don't know what to do next. Or I could be wrong..

Thin vertical line/lines across TV esp. At startup [ 1 Answers ]

My 9-10 year old Sanyo 27" (I'm sure you're all laughing now) TV has thin vertical Line/lines going across the TV, especially at start up. As of now I fix it by smacking the side of the TV moderately hard with a rubber mallet. I'm surprised I haven't broken the plastic cabinet yet! The picture...

Vertical plastic joint leak in waste line [ 5 Answers ]

I live in a 140 year old house. As usual, plumbing is a conglomeration of materials. I have been hearing dripping through the kitchen wall when water drains from the second floor bathroom. There is a false wall behind the kitchen cabinets and dishwasher. The drain line and water lines run through...

Finding old friends on-line! [ 1 Answers ]

Could someone help me find a friend of mine that I have not seen in ages. I think I found him in Roanoke, VA, but I am not sure. Is there a way to get phone numbers for free on anybody on-line? Please respond. I really would like to find this friend of mine. Thanks!

View more questions Search