Question

Tentukan persamaan garis yg melalui titik (3, 4) dan sejajar dgn garis yg persamaannya P(-2, -6) dan Q(8, 14)

Answer 1

Verified answer

Jawab

gradien m = (y2-y1)/(x2-x1)

m1 = (14+6)/(8+2) = 20/10 =2
sejajar m2 =m1 = 2
melalui (x1, y1)= (3,4)
y  - y1 = m(x- x1)
y - 4 = 2(x - 3)
y - 4 = 2x - 6
y = 2x - 6 + 4
y = 2x - 2
2x - y - 2= 0