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Verified answer
Bab Persamaan GarisMatematika SMP Kelas VIII
y = ax + b, sejajar, (p, q)y = ax - ap + q
y = -6x + 2, sejajar, (3, -7)
y = -6x - (-6 . 3) + (-7)
y = -6x + 18 - 7
y = -6x + 11
y = 9x - 5
y = -6x + 11
---------------- -
0 = 15x - 16
15x = 16
x = 16/15
y = 9x - 5
= 9 . 16/15 - 5
= 48/5 - 25/5
= 23/5
Titik potong = { (16/15, 23/5) }