alliwood10 alliwood10

23-02-2022
Mathematics

contestada

Let f(x) = 2x - 1 and g(x)=x² + 4.
.
Find (fog)( - 1).

Respuesta :

IEatNutella IEatNutella

23-02-2022

Answer:

9

Step-by-step explanation:

First, find g(-1)

-1^2 +4 = 1 +4 =5

Plug that into f(x) as x

2(5) - 1 = 10 - 1 = 9

Answer Link

reinhard10158 reinhard10158

23-02-2022

Step-by-step explanation:

(f○g)(x) = f(g(x))

f(g(-1)) :

g(-1) = (-1)² + 4 = 1 + 4 = 5

f(5) = 2×5 - 1 = 10 - 1 = 9

so,

(f○g)(-1) = 9

Answer Link

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