equations of line

Answer 1

Hi Abdelsalam,

What is your question ?

if you want to know only the equation of line :

1) y = mx + b m is slope and b is y-int

2) a x + b y + c = 0 a, b, and c are all real numbers that is another form of equation of line. For finding m and y-int you must solve this equation for y until converse to y = mx + b.

Ex) 2x + 3y -5 = 0

3y = 5 - 2x

y = 5/3 - 2/3 x

y = -2/3 x + 5/3 m = -2/3 y-int = 5/3 ( 0 , 5/3)

I hope it is useful,

Minoo