Ola Rodrigo
f(-1) = 10 --> A(-1,10)
f(1) = 4 --> B(1,4)
m = Δy/Δx = (10 - 4)/(-2) = -3
y - 4 = -3 * (x - 1)
y = -3x + 7
f(x) = -3x + 7
f(3) = -9 + 7 = -2
pronto
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Ola Rodrigo
f(-1) = 10 --> A(-1,10)
f(1) = 4 --> B(1,4)
m = Δy/Δx = (10 - 4)/(-2) = -3
y - 4 = -3 * (x - 1)
y = -3x + 7
f(x) = -3x + 7
f(3) = -9 + 7 = -2
pronto