Login

Welcome, Guest. Please login or register.

April 19, 2024, 03:48:31 pm

Author Topic: equation  (Read 3318 times)  Share 

0 Members and 1 Guest are viewing this topic.

Sarahxx16

  • Trailblazer
  • *
  • Posts: 44
  • Respect: 0
equation
« on: October 21, 2019, 10:02:16 am »
0
If you are given a graph, how do you find the equation of it ?

fun_jirachi

  • MOTM: AUG 18
  • Moderator
  • Part of the furniture
  • *****
  • Posts: 1068
  • All doom and Gloom.
  • Respect: +710
Re: equation
« Reply #1 on: October 21, 2019, 10:14:34 am »
+1
Hey there! :)

That's a very broad question; do you have any specific examples?

For example:
If a graph is just a line, it's possible to use the formulas y=mx+b and y-y1=m(x-x1) from intercepts/points on the graph.
If the graph is a parabola, you can use formulas like ax2+bx+c, (x-a)(x-b) (from x-intercepts), (x-h)2+k (from the vertex of the parabola).
There are plenty more examples but the question is actually so broad it's impossible to cover them all unless you had a specific question in mind :)

Hope this helps! :D
Spoiler
HSC 2018: Mod Hist [88] | 2U Maths [98]
HSC 2019: Physics [92] | Chemistry [93] | English Adv [87] | 3U Maths [98] | 4U Maths [97]
ATAR: 99.05

UCAT: 3310 - VR [740] | DM [890] | QR [880] | AR [800]
Guide Links:
Subject Acceleration (2018)
UCAT Question Compilation/FAQ (2020)
Asking good questions