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2y=4x-8
y=2x-4
m=2
melalui titik (6,1)
y-y1=m(x-x1)
y-1=2(x-6)
y=2x-12+1
y=2x-11 ATAU y-2x+11=0
Cari gradien (m)
2y=4x-8
y=2x-8
Rumus gradien y=mx+b (m itu gradien, b itu angka)
Berarti gradiennya itu 2 (m=2)
Persamaan garis yang melalui titik (6,1)
y = mx + b
1 = 2*6 + b
1 = 12 + b
b = -11
y = mx + b
y = 2x -11