Resposta :
Resposta passo a passo:
1. f(x) = -5x + 7
f(-5) ← x = -5
f(-5) = -5 . (-5) + 7
f(-5) = 25 + 7
f(-5) = 32
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2. f(x) = -2x + 8
f(2) ← x = 2
f(2) = -2 . 2 + 8
f(2) = -4 + 8
Resposta passo a passo:
1. f(x) = -5x + 7
f(-5) ← x = -5
f(-5) = -5 . (-5) + 7
f(-5) = 25 + 7
2. f(x) = -2x + 8
f(2) ← x = 2
f(2) = -2 . 2 + 8
f(2) = -4 + 8