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Verified answer
Y = 2x - 8 memotong sumbu x jika y = 00 = 2x - 8
-2x = -8
x = 4
(4, 0)
Jadi persamaan garis lurus yang melalui (-4,5) dan (4, 0) adalah
(y2 - y1)/(x2 - x1) = (y - y1)/(x - x1)
(0 - 5)/(4 - (-4)) = (y - 5)/(x - (-4))
-5/8 = (y - 5)/(x + 4)
8(y - 5) = -5(x + 4)
8y - 40 = -5x - 20
5x + 8y = 20
5x + 8y - 20 = 0