krissytorres01 krissytorres01
  • 23-10-2018
  • Mathematics
contestada

Given: - 1/2 x > 4
Choose the solution set.

A. {x | x £ R, x > -8}
B. {x | x £ R, x < -8}
C. {x | x £ R, x > -2}
D. {x | x £ R, x < -2}

Respuesta :

gmany
gmany gmany
  • 23-10-2018

[tex]-\dfrac{1}{2}x > 4\qquad|\text{change the signs}\\\\\dfrac{1}{2}x < -4\qquad|\cdot2\\\\x < -8\to\{x|x\in\mathbb{R},\ x < -8\}\to\boxed{B.}[/tex]

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