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Verified answer
Bab Persamaan GarisMatematika SMP Kelas VIII
gradien = m = (y2 - y1) / (x2 - x1)
= (-2 - 3) / (-2 - (-4))
= -5 / 2
tegak lurus,
m1 x m2 = -1
(-5/2) x m2 = -1
m2 = -1 x (-2/5)
m2 = 2/5
jadi, gradien garis H = 2/5