If 4x = 8y, then x and Y () are proportional; if y = 7 / x, then x and Y () are proportional A × 2 / 3 = B × 75%, then a and B () The speed of cycling is proportional to the time required

If 4x = 8y, then x and Y () are proportional; if y = 7 / x, then x and Y () are proportional A × 2 / 3 = B × 75%, then a and B () The speed of cycling is proportional to the time required

If 4x = 8y, then x and Y (positive) proportion; if y = 7 / x, then x and Y (positive) proportion

9 / y = 4x (y is not equal to 0), X and y are proportional to each other. Why

9 / y = 4x
So xy = 9 / 4
So x and y are inversely proportional

Find the plane equation perpendicular to the plane 5x-y + 3z-2 = 0 and through its intersection with the xoy plane

The family of planes passing through the intersection line: 5x-y + 3z-2 + KZ = 0, that is, 5x-y + (3 + k) Z-2 = 0
It is perpendicular to 5x-y + 3z-2 = 0. 25 + 1 + 3 (3 + k) = 0. K = - 35 / 3
The plane is 15x-3y-26z-6 = 0