Question
\[ f(x) = 3x + 4 \quad g(x) = 2x - 3 \] \[ \text{Encuentra: } f \circ g(x) \]
Ask by Stephens Simmons. in Colombia
Mar 18,2025
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Answer
La función compuesta \( f \circ g(x) \) es \( 6x - 5 \).
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The Deep Dive
Para encontrar \( f \circ g(x) \), primero evaluamos \( g(x) \) y luego lo sustituimos en \( f(x) \). 1. Calculamos \( g(x) \): \[ g(x) = 2x - 3 \] 2. Sustituyendo \( g(x) \) en \( f(x) \): \[ f(g(x)) = f(2x - 3) \] Ahora sustituimos \( 2x - 3 \) en la función \( f(x) = 3x + 4 \): \[ f(2x - 3) = 3(2x - 3) + 4 \] 3. Calculamos la expresión: \[ = 6x - 9 + 4 = 6x - 5 \] Así que \( f \circ g(x) = 6x - 5 \).