Results are out! Find what you need...fast. Get quick advice or join the chat
x

Unlock these great extras with your FREE membership

  • One-on-one advice about results day and Clearing
  • Free access to our personal statement wizard
  • Customise TSR to suit how you want to use it

f(x)=x squared

Announcements Posted on
Rate your uni — help us build a league table based on real student views 19-08-2015
  1. Offline

    ReputationRep:
    given that f(x)=x squared sketch these graphs, each on a seprate diagram, and find an expression, giving Y in terms of X, for each function.

    a: y=f(x)-1
    b: y=f(x+1)
    c: y=f(2x)
    d: y=-3f(x)

    i no how to draw these graphs out but i do not get what it means by find the expression giving y in terms of x?

    can any one please explain this
  2. Offline

    ReputationRep:
    y=f(x)-1
    f(x)=x^2
    y=x^2-1
    and etc
  3. Offline

    ReputationRep:
    We know that f(x)=x^2. Then y=f(x+1) \Rightarrow y=(x+1)^2 etc.
  4. Offline

    ReputationRep:
    In these relations you just put the x square instead of f(x) and you find the expression of y in terms of x.
  5. Offline

    ReputationRep:
    (Original post by sahil112)
    given that f(x)=x squared sketch these graphs, each on a seprate diagram, and find an expression, giving Y in terms of X, for each function.

    a: y=f(x)-1
    b: y=f(x+1)
    c: y=f(2x)
    d: y=-3f(x)

    i no how to draw these graphs out but i do not get what it means by find the expression giving y in terms of x?

    can any one please explain this
    They want to know the equations of the 4 graphs that you have drawn.
  6. Offline

    ReputationRep:
    (Original post by Maths Buster)
    They want to know the equations of the 4 graphs that you have drawn.
    havnt they already given it?
  7. Offline

    ReputationRep:
    (Original post by sahil112)
    havnt they already given it?
    They want the equations to involve x, not f. And so your 1st equation would be y = x^2; your 2nd equation would be y = [x + 1]^2. And so on.
  8. Offline

    ReputationRep:
    (Original post by Maths Buster)
    They want the equations to involve x, not f. And so your 1st equation would be y = x^2; your 2nd equation would be y = [x + 1]^2. And so on.
    ah ok thanks for your help

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: October 5, 2008
TSR Support Team

We have a brilliant team of more than 60 Support Team members looking after discussions on The Student Room, helping to make it a fun, safe and useful place to hang out.

Today on TSR

Win a mini-fridge

Don't miss our Freshers competition!

Poll
Do you prefer exams or coursework?
Study resources
x

Looking for some help?

Ask our friendly student community a question

Ask a question now

Or get help from our smart tools and guides

GCSE help A-level help Uni application help Everything else
Quick reply
Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.