Réponses

2014-02-12T13:20:26+01:00
A = -6x+5

a) x = 5
A = -6*5+5
A = -25

b) x = -2
A = -6*(-2)+5
A = 17

c) x = 7
A = -6*7+5
A = -37

d) x = -5
A = -6*(-5)+5
A = 35
2014-02-12T13:31:45+01:00
On considère l'expression littérale : A = -6x + 5

a) Pour x = 5
A = -6 x 5 + 5
A = -30 + 5
A = -25

b) Pour x = -2
A = -6 x -2 +5
A = 12 + 5
A = 17

c) Pour x = 7
A = -6 x 7 + 5
A = -42 + 5
A = -37

d) Pour x = -5
A = -6 x -5 + 5
A = 30 + 5
A = 35