If 4 / x = 8 / y, X is proportional to y, if 4x = 8y (x, y are not 0), X is proportional to y

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1. Find the plane equation passing through X axis and perpendicular to 5x + y-2z + 3 = 0?
2. Find the plane equation that passes through the Y axis and is perpendicular to the plane 5x + 3y-2z + 3 = 0
3. The linear equation passing through point (1, - 1, - 2) and perpendicular to plane 2x-2y + 3Z = 0
4. The plane equation of the line x + y + Z-1 = 0,2x-y + 3Z = 0 and parallel to the line x = 2Y = 3Z is solved
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17. X square + 4ax + y square - 8y + 20 = 0 find the value of X + y
18. Given that the square of x minus 6xy plus the square of 8y equals 0, the value of the Y branch X of the ball
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