A=(3,2),B=(7.5,2),C=(7.5,-2.5),D=(3,-2). write an expression that represent the vertical distance between B and C

The vertical distance between B and C can be found by taking the absolute difference of their y-coordinates. Using the given coordinates:
B = (7.5, 2)
C = (7.5, -2.5)
The vertical distance between B and C is given by:
| y-coordinate of B - y-coordinate of C |
= | 2 - (-2.5) |
= | 2 + 2.5 |
= | 4.5 |
= 4.5
So, the expression representing the vertical distance between B and C is simply 4.5.