emilyortizz718 emilyortizz718

13-10-2017
Mathematics

contestada

If f(x) = x 2 + 1 and g(x) = 3x + 1, find 2f(1) + 3g(4).

1. 45
2. 43
3. 42

Respuesta :

choixongdong choixongdong

13-10-2017

f(x) = x^2 + 1
f(1) = 1^2 + 1 = 2
so 2f(1) = 2(2) = 4

g(x) = 3x + 1
f(4) = 3(4) + 1 = 13
3g(4) = 3(13) = 39

2f(1) + 3g(4) = 4 + 39 = 43

answer
2. 43

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