B = (19.720505629578636, -8.012236786469346)
D = (-4.858003834996802, -7.989201632331974)
E = (-4.858003834996802, 9.379304587246185)
A = (0.9540028917921441, 0.8428270200544364)
C = (1.2590451147054753, 1.452911465881103)
F = (1.7166084490754718, 2.1283621023320554)
G = (2.1523830532373736, 2.542347976285865)
H = (2.52279146677499, 3.0652775012801508)
I = (2.9149886105207012, 3.4792633752339603)
J = (3.394340675098793, 3.89324924918777)
K = (3.699382898012124, 4.220080202309198)
L = (4.113368771965931, 4.721220997095389)
M = (4.832396868833068, 5.135206871049198)
N = (5.181016552162589, 5.527404014794913)
O = (5.638579886532586, 5.76708004708396)
P = (6, 6)
Q = (6.64086147610496, 6.420741953326817)
R = (7.076636080266861, 6.616840525199675)
S = (7.403467033388288, 6.834727827280627)
T = (7.839241637550189, 6.900094017904912)
U = (8.18786132087971, 6.965460208529199)
V = (8.558269734417326, 7.009037668945389)
W = (8.906889417746848, 7.009037668945389)
Z = (9.29908656149256, 6.965460208529199)
A_1 = (9.887382277111126, 6.878305287696818)
B_1 = (10.279579420856837, 6.791150366864437)
C_1 = (10.649987834394453, 6.703995446032056)
D_1 = (10.93324132709969, 6.507896874159198)
E_1 = (12, 6)
F_1 = (12.916015776036344, 5.440249093962532)
G_1 = (13.177480538533484, 5.178784331465389)
H_1 = (13.482522761446816, 4.76479845751158)
I_1 = (13.787564984360147, 4.4379675043901505)
a = -0.1 (slider from -2 to 2, step 0.01)
b = 1.77 (slider from 1 to 4, step 0.01)
c = -0.96 (slider from -2 to 2, step 0.01)
f(x) = a * x^(2.0) + b * x + c