Respuesta :

mhanifa

Answer:

  • x = 4

Step-by-step explanation:

Given function  

  • f(x) =1/4 x - 2

Find x if f(x) = -1

  • 1/4x - 2 = - 1
  • 1/4x = 2 - 1
  • 1/4x = 1
  • x = 1*4
  • x = 4

Answer:

x=4

Step-by-step explanation:

f(x) =1/4 x - 2 when f(x) = -1.

-1=1/4x-2

-1+2=1/4 x

1×4=x

x=4

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