Question

faça um gráfico fa função f(×)=-x+2x-4

Answer 1

Vamos lá

Calculo

f ( 0 )= ( - 0 ) + 2 ( 0 ) - 4

f ( 0 ) = -0 + 2 ( 0 ) - 4

f ( 0 ) = 0 + 2 • 0 - 4

f ( 0 ) = 0 - 4

f ( 0 ) = - 4

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f ( - 1 ) = ( - 1 ) + 2 ( 1 ) - 4

f ( - 1 ) = - 1 - 2 - 4

f ( - 1 ) = - 6

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f ( - 2 ) = - ( 2 ) + 2 ( 2 ) - 4

f ( - 2 ) = 2 - 4 - 4

f ( - 2 ) = - 6