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(9,2)
6x+3y = -9 3y = -6x-9 y = -2x-3 Therefore the perpendicular slope is 1/2
Put in function, Y = mX + C, form. 6X + 3Y = - 9 3Y = - 6X - 9 Y = - 2X - 3 -------------------- m(slope) = - 2 ----------------------
6x + 3y + 6y - 2x = (6x - 2x) + (3y + 6y) = 4x + 9y
30 - 12 = 18