If im correct 60,000 years ago
It is the x axis. the y axis is the vertical one
Given:
WXYZ is an isosceles trapezoid. WY=8x-3 and ZX=19.
To find:
The value of x.
Solution:
We know that the diagonals of an isosceles trapezoid are equal. So,


Add 3 on both sides.


Divide both sides by 8.


Therefore, the correct option is B.