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11-04-2015
Mathematics

contestada

Given the funtion f(x)=-4-x:
A. Evaluate: f(-2)
B. Solve for x when f(x) =-8

Respuesta :

11-04-2015

f(x)=-4-x

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

f(-2)=-2

B. f(x)=8

-4-x=8 /+4

-x=12 /*(-1)

x=-12

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