PErsamAAnGarisdua titik
[tex]\sf \dfrac{y - y_1}{y_2- y_1} = \dfrac{x-x_1}{x_2 - x_1}[/tex]
Persamaan garis yang melalui titik P(0,-5) dan Q(-1, 3) adalahx1= 0 , y1 = - 5x2 = -1 , y2 = 3
[tex]\sf \dfrac{y +5}{3+5} = \dfrac{x-0}{-1-0}[/tex]
[tex]\sf \dfrac{y +5}{8} = \dfrac{x}{-1}[/tex]
8(x) = - 1 (y + 5)8x = -y - 58x + y + 5 =0
PGL
P(0,-5)
Q(-1,3)
______(-)
1y = -8x + (0.3 - (-5)(-1))
y = -8x + (-5)
y = -8x - 5
persamaan garis melalui P dan Q :
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PErsamAAnGaris
dua titik
[tex]\sf \dfrac{y - y_1}{y_2- y_1} = \dfrac{x-x_1}{x_2 - x_1}[/tex]
Persamaan garis yang melalui titik P(0,-5) dan Q(-1, 3) adalah
x1= 0 , y1 = - 5
x2 = -1 , y2 = 3
[tex]\sf \dfrac{y - y_1}{y_2- y_1} = \dfrac{x-x_1}{x_2 - x_1}[/tex]
[tex]\sf \dfrac{y +5}{3+5} = \dfrac{x-0}{-1-0}[/tex]
[tex]\sf \dfrac{y +5}{8} = \dfrac{x}{-1}[/tex]
8(x) = - 1 (y + 5)
8x = -y - 5
8x + y + 5 =0
PGL
P(0,-5)
Q(-1,3)
______(-)
1y = -8x + (0.3 - (-5)(-1))
y = -8x + (-5)
y = -8x - 5
persamaan garis melalui P dan Q :
y = -8x - 5