Wagner Tucker
01/27/2024 · Middle School
1. Realize os cálculos e em seguida represente a função definida por \( f(x)=x^{2}-2 x \) em que \( D(f)=\{0,1,2,3\} \) e \( C D(f)=\{-1,0,1,2,3\} \). por meio de um diagrama de flechas. 2. Seja \( f \) uma relação de \( A=\{-4,-3,-2,-1,0\} \) em \( B=\{-3,-2,-1,0,1,2,3,4,5) \) definida por \( f(x)=2 x+5 \). Realize os cálculos necessários e em seguida faça o diagrama de setas de \( f \) e verifique se \( f \) é uma funçāo de \( A \) em \( B \). Em caso afirmativo, determine: a) Seu dominio \( D_{i} \) b) \( O \) conjunto imagem da função Im; c) \( f(-2) \); d) \( f(0) \).
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1. \( f(0) = 0 \), \( f(1) = -1 \), \( f(2) = 0 \), \( f(3) = 3 \)
2. \( D_i = \{-4, -3, -2, -1, 0\} \), Im = \( \{-3, -1, 1, 3, 5\} \), \( f(-2) = 1 \), \( f(0) = 5 \)
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