Transformations
We are given the endpoints of segment CD C(1,2) D(5,4)
It's required to apply two transformations of the segment CD, as follows.
First, we apply (x,y) => (x-4,y)
For point C(1,2) =>C'(1-4,2)=>C'(-3,2)
For point D(5,4)=>D'(5-4,4)=>D'(1,4)
Now we apply a reflection over the x-axis.
A reflection over the x-axis maps point (x,y) to (x,-y).
For point C'(-3,2)=>C''(-3,-2)
For point D'(1,4)=>D''(1,-4)
The segment C''D'' will be represented in the graph below
