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Verified answer
M = -a/ba=5 b=-2
m = -5/-2
= 5/2
jadi jawaban nya B
mₘ = -a / b
mₘ = -5 / -2
mₘ = ⁵/₂
Garis h tegak lurus m maka
mₘ × mₕ = -1
⁵/₂ × mₕ = -1
mₕ = - ⅖