Tentukan PGL yg melalui (7,20) dan sejajar dengan garis 2x-5y=8
Jawaban Terkonfirmasi
2x-5y=8
y=(-2x+8)/-5
y=2/5x-8/5 =>>m=2/5
y-y1=m(x-x1)
y-20=2/5(x-7)
y=2/5x-14/5+20
y=2/5x+86/5
atau
2x-5y+86=0
2x – 5y = 8
– 5y = – 2x + 8
y = 2/5 x – 8/5
m1 = 2/5
syarat sejajar = m1 = m2 = 2/5
y – y1 = m (x – X1)
y – 20 = 2/5 (x – 7)
y – 20 = 2/5 x – 14/5
y = 2/5 x – 14/5 + 20
——————————(×5)
5y = 2x – 14 + 100
5y – 2x = 86