determine se as funções abaixo possuem valor maximo ou minimo a seguir calcule esse valor
f(x)=3x2 -6x+2
f(x)= -2x2 +4x - 1
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if valor a > 0 , --> minimum function
a < 0, --> maximum function
a) f(x) = 3x²-6x+2 --> a=3 --> a > 0, minimum function
at x symmetric = -b/2a = 6/2(3) = 1
f(1) minimum = 3.1²-6(1)+2 = 3-6+2 = -1
b) f(x) = -2x² + 4x -1 , a= -2 --> a < 0, maximum function
at x synnetruc = -b/2a = -4/2(-2) = 1
f(1) maximum = -2.1² + 4(1) - 1 = -2 +4 - 1 = 1
a < 0, --> maximum function
a) f(x) = 3x²-6x+2 --> a=3 --> a > 0, minimum function
at x symmetric = -b/2a = 6/2(3) = 1
f(1) minimum = 3.1²-6(1)+2 = 3-6+2 = -1
b) f(x) = -2x² + 4x -1 , a= -2 --> a < 0, maximum function
at x synnetruc = -b/2a = -4/2(-2) = 1
f(1) maximum = -2.1² + 4(1) - 1 = -2 +4 - 1 = 1
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