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which is the inverse of the function $y = 3(x - 4)$? a. $y = 3(x + 4)$ …

Question

which is the inverse of the function $y = 3(x - 4)$?
a. $y = 3(x + 4)$
b. $y = 3x + 4$
c. $y = \frac{1}{3}(x + 4)$
d. $y = \frac{1}{3}x + 4$

Explanation:

Step1: Intercambiar x e y

Dada la función \( y = 3(x - 4) \), intercambiamos \( x \) e \( y \) para encontrar la inversa: \( x = 3(y - 4) \).

Step2: Resolver para y

Primero, dividimos ambos lados por 3: \( \frac{x}{3}=y - 4 \). Luego, sumamos 4 a ambos lados: \( y=\frac{1}{3}x + 4 \).

Answer:

D. \( y=\frac{1}{3}x + 4 \)