Tulislah persamaan garis yang bergradien 2 dan melalui titik berikut! A.(0,-3) B.(0,2setengah)
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Rinri
Y-y1 = m(x-x1) y+3 = 2(x-0) y+3 = 2x - 0 y = 2x - 0 - 3 y = 2x - 3 y - 2x = -3 atau y- 2 1/2 = 2(x-0) y- 2 1/2 = 2x-0 y = 2x-0- 2 1/2 y = 2x- 5/2 2y = x - 5 2y-x = -5
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