Soit g la fonction linéaire telle que g : x |—> -2/3x Calculer g(-21) et g(3/7) Merci

Bonjour,

g(x) = -2/3x

g(-21) = -2/3 × (-21) = 42/3 = 14

g(3/7) = -2/3 × 3/7 = -2/7 (il suffit de supprimer les 3 pour simplifier la fraction)

Bonsoir,

g(x) = (-2/3)x

1. Calculer g(-21)

g(-21) = -2/3 * (-21)

g(-21) = [-21 * (-2)]/3

g(-21) = 42/3

g(-21) = 14 ✅

2. Calculer g(3/7)

g(3/7) = -2/3 * 3/7

g(3/7) = (-2 * 3)/(3 * 7)

g(3/7) = -6/21

g(3/7) = -2/7 ✅

* = multiplication

Bonne soirée