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practice using method 2 for the second problem. let ( f(x) = x^2 + 1 ) …

Question

practice using method 2 for the second problem.
let ( f(x) = x^2 + 1 ) and ( g(x) = x - 2 ).
evaluate ( (g circ f)(0) ).
a. 1
b. 5
c. -5
d. -1

Explanation:

Step1: Entender la composición de funciones

La composición \((g \circ f)(x)\) significa \(g(f(x))\). Entonces, primero debemos encontrar \(f(0)\) y luego usar ese resultado como entrada para \(g(x)\).

Step2: Calcular \(f(0)\)

Dada \(f(x) = x^2 + 1\), sustituimos \(x = 0\):
\(f(0) = (0)^2 + 1 = 0 + 1 = 1\)

Step3: Calcular \(g(f(0)) = g(1)\)

Dada \(g(x) = x - 2\), sustituimos \(x = 1\) (ya que \(f(0) = 1\)):
\(g(1) = 1 - 2 = -1\)

Answer:

D. -1