Turn on thread page Beta

How do I know how a graph looks like by looking at the equation? watch

    • Thread Starter
    Offline

    8
    ReputationRep:
    I know about y = mx+c but what do I do when there is more than 1 y? and how about other equations?
    Online

    15
    ReputationRep:
    You have to rearrange it so that you end up with all the y on one side and perhaps factorise the y out. You have to apply all the algebraic methods you know to end up with an equation y=....., where the elipses doesn't contain any term involving y. Once you know that you just look at the various types of graph that you should have been taught.
    Quadratic: y=ax^2 + bx + c
    Linear : y = mx+c
    Exponential = y = a^x
    Inverse y = 1/x
    etc. etc.
    Offline

    3
    ReputationRep:
    (Original post by StayWoke)
    You have to rearrange it so that you end up with all the y on one side and perhaps factorise the y out. You have to apply all the algebraic methods you know to end up with an equation y=....., where the elipses doesn't contain any term involving y. Once you know that you just look at the various types of graph that you should have been taught.
    Quadratic: y=ax^2 + bx + c
    Linear : y = mx+c
    Exponential = y = a^x
    Inverse y = 1/x
    etc. etc.
    if it helps a quadratic looks like a "u" or "n" and a linear is just a straight line. c in y=mx+c is the y intercept and the same for y=ax^2+bx+c
    Offline

    17
    ReputationRep:
    (Original post by SASHAF2001)
    if it helps a quadratic looks like a "u" or "n" and a linear is just a straight line. c in y=mx+c is the y intercept and the same for y=ax^2+bx+c
    Hi Sasha bruv how's my dad zarrin doing 🍑😸🐱🙃🙀🙀🤢☹ ¸ðŸ˜ðŸ¥
 
 
 
Reply
Submit reply
Turn on thread page Beta
Updated: November 10, 2017

University open days

  1. University of Bradford
    University-wide Postgraduate
    Wed, 25 Jul '18
  2. University of Buckingham
    Psychology Taster Tutorial Undergraduate
    Wed, 25 Jul '18
  3. Bournemouth University
    Clearing Campus Visit Undergraduate
    Wed, 1 Aug '18
Poll
How are you feeling in the run-up to Results Day 2018?
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.