In this case the answer is very simple .
We must calculate the new points and graph.
Step 01:
Data:
W (1,7)
X (6,5)
Y (4,0)
Z (-1,2)
Step 02:
Calculate the new points.
(x,y) => ( x - 7 , y + 0)
W' ( 1 - 7 , 7 + 0 ) = W' ( -6 , 7 )
X' ( 6 - 7, 5 + 0 ) = X' ( -1 , 5 )
Y' ( 4 - 7 , 0 + 0 ) = Y' ( -3 , 0 )
Z' ( -1 - 7 , 2 + 0 ) = Z' ( -8 , 2 )
Step 03:
Graph.
That is the solution. .