Point M

             t 

durée (en heures)

E
énergie (en watts-heures)

Ampoule 5
P = 23 watts

Ampoule 4
P = 14 watts

Ampoule 2
P = 7 watts

Ampoule 1

Ampoule 3
P = 11 watts

Aide question 2.a.

t = 6.5 (slider from 0 to 10, step 0.1)
f = Function(5.0 * x, 0.0, 10.0)
g = Function(7.0 * x, 0.0, 10.0)
q = Function(23.0 * x, 0.0, 10.0)
M: (t, 5.0 * t)
a = OrthogonalLine(M, xAxis)
B = Intersect(a, xAxis)
b = Segment(M, B)
c = OrthogonalLine(M, yAxis)
C = Intersect(c, yAxis)
d = Segment(M, C)
texte1: "" + (x(M))
texte2: "" + (5.0 * x(M))
e = true
p = Function(14.0 * x, 0.0, 10.0)
h = Function(11.0 * x, 0.0, 10.0)
E = (2, 100)
G = Point(xAxis)
J = Point(xAxis)
A = (1, 40)
i = OrthogonalLine(A, yAxis)
D = Intersect(q, i, 1.0)
F = Point(xAxis)
j = Segment(D, F)
H = Intersect(p, i, 1.0)
I = Point(xAxis)
k = Segment(H, I)
K = Intersect(h, i, 1.0)
L = Point(xAxis)
l = Segment(K, L)
N = Intersect(g, i, 1.0)
O = Point(xAxis)
m = Segment(N, O)
P = Intersect(f, i, 1.0)
Q = Point(xAxis)
n = Segment(P, Q)
o = false
R = (5.99223697105222, 12.734016750036286)