Question

Materi Persamaan garis

Tolong Dijelasin garis g dan pakai cara

Answer 1

Verified answer

garis g :
koordinat :-1 , 0  dan 0,-2
x1 = -1
x2=0

y1=0
y2=-2
persamaan :
y-y1 =x-x1
------ =------
y1-y2  x1-x2
 
y-0 =x- (-1)
----- = -----
0-(-2)  -1-0

y      = x+1
-----        -----
  2        -1
-y =2(x+1)
 -y =2x+2 ---> kali -1

  y =-2x-2  --->  y+2x+2=0