Results are out! Find what you need...fast. Get quick advice or join the chat
Hey! Sign in to get help with your study questionsNew here? Join for free to post

c1 question help

Announcements Posted on
Applying to Uni? Let Universities come to you. Click here to get your perfect place 20-10-2014
    • Thread Starter
    • 0 followers
    Offline

    ReputationRep:
    I am sort of stuck on this question. (exam- June 2009 question 11 part ii)

    The point P on the curve y=kX^0.5 has x-coordinate 4. the normal to the curve p is parallel to the line 2x+3y=0

    i) find the value k,

    I have found the value k and it is 6

    ii) this normal meets the x-axis at the point Q. calculate the area of the triangle OPQ. where o is the point (0,0)

    This is the part I am stuck on, I just don't know how to find the co-ordinate of Q.

    In the mark scheme the coordinates of Q are (22,0) but i have no idea how they have got this.

    Could some one please help me?
    • 46 followers
    Offline

    ReputationRep:
    (Original post by unknown123)
    I am sort of stuck on this question. (exam- June 2009 question 11 part ii)

    The point P on the curve y=kX^0.5 has x-coordinate 4. the normal to the curve p is parallel to the line 2x+3y=0

    i) find the value k,

    I have found the value k and it is 6

    ii) this normal meets the x-axis at the point Q. calculate the area of the triangle OPQ. where o is the point (0,0)

    This is the part I am stuck on, I just don't know how to find the co-ordinate of Q.

    In the mark scheme the coordinates of Q are (22,0) but i have no idea how they have got this.

    Could some one please help me?
    Someone else also asked this question today, i have answered it on this thread.

Reply

Submit reply

Register

Thanks for posting! You just need to create an account in order to submit the post
  1. this can't be left blank
    that username has been taken, please choose another Forgotten your password?
  2. this can't be left blank
    this email is already registered. Forgotten your password?
  3. this can't be left blank

    6 characters or longer with both numbers and letters is safer

  4. this can't be left empty
    your full birthday is required
  1. By joining you agree to our Ts and Cs, privacy policy and site rules

  2. Slide to join now Processing…

Updated: May 10, 2012
New on TSR

Personal statement help

Use our clever tool to create a PS you're proud of.

Article updates
Reputation gems:
You get these gems as you gain rep from other members for making good contributions and giving helpful advice.