Simultaneous equations

Simultaneous equations
>
The intersection between equation & graph


Linear graph > Straight line M



7 -



eg :


-
re
- ve S >

L L V




Quadratic graph S Parbola


+ ve -ve




Cubic graph

+ re -ve




How to solve linear equation
Substitute in the formula making it only Y or X equation O
1 ①
3x3
x
y
- =




example : 10
3x +
3y =




-substitution by ② x -



y = 3

< 3x -


By = 9
3
making ory equation -substitute the
1 y
=



By
-
+

3x + =
10

3
only value you got
y 4
=
- -




6x 19
= to get the
missing y
= -




j
x = 1916