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Kelas : VIII SMP
Bab : Gradien
Pembahasan :
y = mx + c ——» m = Gradien
y = -1/2 x + 6 ——» M1 = -1/2
Karena Tegak Lurus, maka...
M1 . M2 = -1
(-1/2) . M2 = -1
M2 = -1/(-1/2)
M2 = 2
Persamaan Garisnya...
y - y1 = m(x - x1)
y - 5 = 2(x - 2)
y - 5 = 2x - 4
y = 2x + 1