Question

Persamaan garis yang melalui titik S (-5,4) dan T (9,-3) adalah...

Answer 1

Verified answer

Materi : Persamaan Garis
Kelas : VIII SMP

Titik S (-5 , 4) --> x1 = -5 , y1 = 4
Titik T (9 , -3) ---> x2 = 9 , y2 = -3

Persamaan Garis
(y - y1) / (y2 - y1) = (x - x1) / (x2 - x1)
(y - 4) / (-3 - 4) = (x + 5) / (9 + 5)
(y - 4) / (-7) = (x + 5) / 14
(y - 4) / (-1) = (x + 5) / 2
2 (y - 4) = - (x + 5)
2y - 8 = -x - 5
x + 2y - 8 + 5 = 0
x + 2y - 3 = 0