Example 7 In the figure below, line AE is parallel to line
FD. Calculate the values of x, k, y and n.
E
A
B
n
659
2k
559
X
D
H
F C
Solution​

the answer is d

the answer is in the first quadrant, which make the y-int positive.

since the dots are going down, therefore the correlation is negative

i hope it is right.

you need to rotate this triangle about the origin 270 degrees clockwise to create the full square.