\boldsymbol{u}

\boldsymbol{v} = \lambda \cdot \boldsymbol{u} \;\; (\lambda > 0)

\boldsymbol{w} = \mu \cdot \boldsymbol{u} \;\; (\mu < 0)

A = Intersect(xAxis, yAxis)
B = (2, 4)
u = Vector(A, B)
u' = Dilate(u, 1.5, A)
a = Line(B, xAxis)
b = Line(B, yAxis)
C: (1.5 * B)
c = Line(C, xAxis)
d = Line(C, yAxis)
u'_1 = Dilate(u, -0.7, A)
D: ((-0.7) * B)
e = Line(D, yAxis)
f = Line(D, xAxis)
E = Intersect(a, yAxis)
F = Intersect(b, xAxis)
G = Intersect(c, yAxis)
H = Intersect(d, xAxis)
I = Intersect(f, yAxis)
J = Intersect(e, xAxis)
g = Segment(J, D)
h = Segment(D, I)
i = Segment(E, B)
j = Segment(F, B)
k = Segment(G, C)
l = Segment(H, C)