Jawabanmu

2014-04-30T16:37:41+07:00
2014-05-01T01:15:08+07:00
P (-5,6), maka x1 = -5 dan y1 = 6
Q (2,-3), maka x2 = 2 dan y2 = -3
y - y1 / y2 - y1 = x - x1 / x2 - x1
y - 6 / -3 - 6 = x - (-5) / 2 - (-5)
y - 6 / -9 = x + 5 / 7
7(y - 6) = -9(x + 5)
7y - 42 = -9x - 45
7y  = -9x -45 +42
7y = -9x -3 atau 9x + 7y + 3 = 0