Given : XY = 3Wx
YZ = 6 WX
Prove: WZ=10wx

Step-by-step explanation:

XY = 3WX

3WX - XY = 0

X(3W - Y) = 0

By zero product rule, either X = 0 or 3W = Y.

YZ = 6WX = 2XY (From 1st equation)

2XY - YZ = 0

Y(2X - Z) = 0

Again by zero product rule, either Y = 0 or 2X = Z.

Therefore, either both X and Z = 0, or both W and Y = 0. Let's look at the last equation.

WZ = 10WX

10WX - WZ = 0

W(10X - Z) = 0.

Here, either W = 0 or 10X - Z = 0.

- If both X and Z were 0, 10X - Z = 0.

- If both W and Y were 0 instead, W = 0.

Since both ways satisfy the equation, it is proved.

the first one, all those points on the line just make a strait line.

360/29

step-by-step explanation: