What is f[g(7)] for the following functions? f(x) = 3x2 − 4 g(x) = 2x − 5 f[g(7)] = 9 f[g(7)] = 143 f[g(7)] = 239 f[g(7)] =281

Herb Caudill asked Apr 10, 2023

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9 votes

What is f[g(7)] for the following functions?

f(x) = 3x2 − 4

g(x) = 2x − 5

f[g(7)] = 9
f[g(7)] = 143
f[g(7)] = 239
f[g(7)] =281

Herb Caudill asked Apr 10, 2023

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19 votes

Answer: 239

Explanation:

$g(7)=2(7)-5=9\\\\f[g(7)]=f(9)=3(9)^2 - 4=239$

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