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rumusnya y - y1 = m ( x - x1 )
melalui titik Q ( -2,4) berarti x1 = -2 dan y1 = 4
m ( gradien ) = 3
Jawaban =
y - 4 = 3(x - (-2))
y - 4 = 3 (x + 2)
y - 4 = 3x + 6
y = 3x + 6 + 4
y = 3x + 10
Jadi persamaan garisnya adalah y = 3x + 10
Semoga membantu ^_^
maaf kalau salah
8(y-4) = -5(x+2)
8y - 32 = -5x - 10
8y = -5x - 10 + 32
8y = -5x + 22
5x + 8y - 22 = 0