Mathematics, 05.05.2020 00:18 jewlbug4358

Faça o estudo do sinal da função y = -4x+16 e indique para que valores de x a função é positiva, negativa ou nula:
a)positiva x>5, negativa x<5 e nula x=5
b)positiva x>-4, negativa x<-4 e nula x=-4
c)positiva x<4, negativa x>4 e nula x=4
d)positiva x<-5, negativa x>-5 e nula x=-5

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Faça o estudo do sinal da função y = -4x+16 e indique para que valores de x a função é positiva, neg...