Math Problem Statement

Tentukan domain dan range dari fungsi komposisi (fog)(x), serta berapa nilai fungsi komposisi dari (fog)(-1)?

f(x)= 2x + 7 g(x) x²-2x+1

Solution

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Math Problem Analysis

Mathematical Concepts

Function Composition
Quadratic Functions
Domain and Range

Formulas

(f ∘ g)(x) = f(g(x))
f(x) = 2x + 7
g(x) = x^2 - 2x + 1
Quadratic Function Minimum: x = -b/2a

Theorems

Function Composition
Quadratic Function Range

Suitable Grade Level

Grades 10-12