Hey there Sign in to join this conversationNew here? Join for free

FP1 - Parabola question

Announcements Posted on
Study Help needs new mods! 14-04-2014
Post on TSR and win a prize! Find out more... 10-04-2014
    • Thread Starter
    • 0 followers
    Offline

    ReputationRep:


    I've done part a)

    part b) I subbed the values into the tangent and got the values of t as 4 and -1, which are correct. However I was unsure of what to do here so I looked at the solutions and they subbed the values of t into the point P, and i'm not sure why, Is it because P has the parametric equations? as in x = at^2 and y = 2at? So P is just a general point on the parabola? If not then why into P?

    Thanks.
    • 46 followers
    Offline

    ReputationRep:
    (Original post by lemonpwns1)
    So P is just a general point on the parabola?
    Yes
    • Thread Starter
    • 0 followers
    Offline

    ReputationRep:
    (Original post by raheem94)
    Yes
    thanks for the quick response

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?

    this is what you'll be called on TSR

  2. this can't be left blank
    this email is already registered. Forgotten your password?

    never shared and never spammed

  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 completing the slider below you agree to The Student Room's terms & conditions and site rules

  2. Slide the button to the right to create your account

    Slide to join now Processing…

    You don't slide that way? No problem.

Updated: June 2, 2012
Article updates
Reputation gems:
You get these gems as you gain rep from other members for making good contributions and giving helpful advice.