4x + 3y=9
x=0 y=3
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The solution of 4x plus 3y -9 and x -3 is; 5x+3y-3.
y = (4x+9)/(2x+3)2xy+3y = 4x+93y-9 = 4x-2xy3y-9 = x(2-2y)x = (3y-9)/(2-2y)So, inverse function is 3x minus 9 divided by 2 minus 27.
2y + 3 = 3y + 9 2y - 3y = 9 - 3 or -y = 6 so y = -6
6x+3y = -9 3y = -6x-9 y = -2x-3 Therefore the perpendicular slope is 1/2
4x + 9 = 254x = 25 - 94 x = 16x= 16/4x= 4