Turn on thread page Beta

Can someone please have a look at this maths question? (C1) watch

    • Community Assistant
    • Thread Starter
    Offline

    19
    Community Assistant
    The triangle with vertices (0,0) (1,p), (10,0) is right angled. Find the two possible values of p.

    Some guidance please?
    • Very Important Poster
    Offline

    21
    ReputationRep:
    Very Important Poster
    (Original post by honour)
    The triangle with vertices (0,0) (1,p), (10,0) is right angled. Find the two possible values of p.

    Some guidance please?
    Plot (0,0), (10,0) and draw the line x = 1 and work from there
    Offline

    7
    ReputationRep:
    firstly draw sketch. always helps . hint product of perpendicular gradients = -1
    Offline

    22
    ReputationRep:
    It's right-angled. So it satisfies Pythagoras's theorem. Can you apply this here? You should end up with a quadratic in p.
    • Community Assistant
    • Thread Starter
    Offline

    19
    Community Assistant
    (Original post by Chemgawd99)
    firstly draw sketch. always helps . hint product of perpendicular gradients = -1
    But the gradient of the line passing through (0,0) and (10,0) is 0... what multiplies 0 to get -1?
    Offline

    7
    ReputationRep:
    (Original post by honour)
    But the gradient of the line passing through (0,0) and (10,0) is 0... what multiplies 0 to get -1?
    sketch the triangle and you will see line passing through (0,0) (1,p) and line passing through (1,p) (10,0)
    Offline

    13
    ReputationRep:
    the answer is p=3 and p=-3
    Offline

    13
    ReputationRep:
    i will post the working one min
    • Community Assistant
    • Thread Starter
    Offline

    19
    Community Assistant
    (Original post by perks23)
    x
    Thank you ever so much! Your presentation is so neat!
 
 
 
Reply
Submit reply
Turn on thread page Beta
Updated: November 9, 2016
The home of Results and Clearing

2,996

people online now

1,567,000

students helped last year

University open days

  1. London Metropolitan University
    Undergraduate Open Day Undergraduate
    Sat, 18 Aug '18
  2. Edge Hill University
    All Faculties Undergraduate
    Sat, 18 Aug '18
  3. Bournemouth University
    Clearing Open Day Undergraduate
    Sat, 18 Aug '18
Poll
A-level students - how do you feel about your results?
Useful resources

Make your revision easier

Maths

Maths Forum posting guidelines

Not sure where to post? Read the updated guidelines here

Equations

How to use LaTex

Writing equations the easy way

Student revising

Study habits of A* students

Top tips from students who have already aced their exams

Study Planner

Create your own Study Planner

Never miss a deadline again

Polling station sign

Thinking about a maths degree?

Chat with other maths applicants

Can you help? Study help unanswered threads

Groups associated with this forum:

View associated groups

The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

Write a reply...
Reply
Hide
Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.