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Module 4 corrigé d'exercices

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Module 4 corrigé d'exercices

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  • December 22, 2023
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  • 2020/2021
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  • Alain dupuis
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Module 4 – Fonctions
Exercices et corrigé
Version 4



MQT 1001
Mathématiques appliquées
à la gestion




Houda Affes

,Table des matières
Exercices ........................................................................................................................................................... 4
Section 1 ......................................................................................................................................................... 4
Section 2 ......................................................................................................................................................... 9
Section 3 ....................................................................................................................................................... 13

Corrigé des exercices ................................................................................................................................... 15
Section 1 ....................................................................................................................................................... 15
Section 2 ....................................................................................................................................................... 22
Section 3 ....................................................................................................................................................... 36

, MQT 1001 – Mathématiques appliquées à la gestion
Module 4 – Exercices et corrigé




Exercices

Section 1
1. Dans un plan cartésien, dites le signe de l’abscisse x et de l’ordonnée y dans chacun des
quadrants I, II, III et IV de la figure 4.1 de la lecture du module.

2. Positionnez les points suivants dans un même graphique :
(0, 0); (0, 10); (–2, 3); (–8, –6); (3, –6); (–3, 1), (–4, –2)

3. Positionnez les points des relations suivantes dans un même graphique et dites s’il s’agit d’une
fonction :




Tableau 4.1
Table des valeurs de la question 3a

X 1 1 2 2 3 3 4 4

Y –2 2 –4 4 –6 6 –8 8




Tableau 4.2
Table des valeurs de la question 3b

X 1 2 3 4

Y 4 5 2 1




Tableau 4.3
Table des valeurs de la question 3c

x 2 4 2 3

y 1 5 –3 3




4

, MQT 1001 – Mathématiques appliquées à la gestion
Module 4 – Exercices et corrigé




Tableau 4.4
Table des valeurs de la question 3d

x –2 –1 0 1

y 3 –5 8 2



4. Après avoir déterminé quelques valeurs correspondant aux fonctions suivantes, représentez-les
graphiquement :

()
f x = 2x − 5

()
f x = 2x − 10

()
f x = 4x + 10


5. En vous basant sur le procédé d’examen d’un graphique cartésien décrit dans la lecture du
module 4, dites si les graphiques suivants représentent des fonctions ou des relations.




Figure 4.1
y




x




5

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