jose22rivas10 jose22rivas10

23-05-2020
Mathematics

contestada

If f(x) = 3x² + 1 and g(x) = 1 - X, what is the value of (f -9)(2)?

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sqdancefan sqdancefan

25-05-2020

Answer:

(f -g)(2) = 14

Step-by-step explanation:

You can write the expression for the composite function as ...

(f -g)(x) = f(x) -g(x) = (3x² +1) -(1 -x)

(f -g)(x) = 3x² +x

Then for x = 2 ...

(f -g)(2) = 3(2²) +2

(f -g)(2) = 14

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