A = (-6, 9)
B = (-4, 9)
m = Segment(A, B)
C = (-6, 8)
D = (-4, 8)
n = Segment(C, D)
E = (-6, 7)
F = (-4, 7)
o = Segment(E, F)
I = Point(m)
J = Point(n)
K = Point(o)
a: (x(I) + 5) 5
b: (x(J) + 5) 5
c: (x(K) + 5) 5
f(x) = a x² + b x + c
T1: "a = " + a
T2: "b = " + b
T3: "c = " + c
N_1, N_2, N_3 = Root(f)
T5: "f(x) = " + f
T7: "N_1 = " + N_1
T8: "N_2 = " + N_2