Question
\[ f(x) = 3x + 4 \quad g(x) = 2x - 3 \] \[ \text{Trova: } f \circ g(x) \]
Ask by Schneider Allan. in Italy
Mar 14,2025
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\( f \circ g(x) = 6x - 5 \)
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Per trovare \( f \circ g(x) \), dobbiamo sostituire \( g(x) \) all'interno di \( f(x) \). Prima calcoliamo \( g(x) \): \[ g(x) = 2x - 3 \] Ora sostituiamo \( g(x) \) in \( f(x) \): \[ f(g(x)) = f(2x - 3) = 3(2x - 3) + 4 \] Ora semplifichiamo l'espressione: \[ = 6x - 9 + 4 = 6x - 5 \] Quindi, la composizione \( f \circ g(x) \) è: \[ f \circ g(x) = 6x - 5 \]