a. Sur cette droite graduée, 
place les points M d'abscisse 2,7 et N d'abscisse 5,2.

N

M

2

2,5

3

3,5

4

4,5

5

5,5

A = Point(xAxis)
B = Point(xAxis)
C = Point(xAxis)
D = Point(xAxis)
E = Point(xAxis)
F = Point(xAxis)
G = Point(xAxis)
H = Point(xAxis)
I = Point(xAxis)
J = Point(xAxis)
K = Point(xAxis)
L = Point(xAxis)
M = Point(xAxis)
N = (3.6, 0)
O = Point(xAxis)
P = Point(xAxis)
Q = Point(xAxis)
R = (5.4, 0)
S = Point(xAxis)
T = Point(xAxis)
f = Segment(A, T)
U = (0.5165217391304349, 0.34)
V = (0.49825039287585127, -0.28)
R_1 = (7.8, 0)
R_2 = (8.4, 0)
R_3 = (9, 0)
R_4 = (9.6, 0)
R_5 = (10.8, 0)
R_6 = (11.4, 0)
R_7 = (12, 0)
R_8 = (12.6, 0)
R_9 = (16.8, 0)
R_{10} = (17.4, 0)
R_{11} = (18, 0)
R_{12} = (18.6, 0)
R_{13} = (19.8, 0)
R_{14} = (20.4, 0)
R_{15} = (21, 0)
R_{16} = (21.6, 0)
W = Point(f)
Z = Point(f)