anonymous
  • anonymous
Solve and graph the absolute value inequality: |2x + 4| > 8. I need helpppp!!!
Mathematics
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anonymous
  • anonymous
Solve and graph the absolute value inequality: |2x + 4| > 8. I need helpppp!!!
Mathematics
schrodinger
  • schrodinger
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anonymous
  • anonymous
subtract 4 from both sides and then create 2 equations, |2x | > 8 and |2x| < 8.
anonymous
  • anonymous
then i simplify that right?
welshfella
  • welshfella
the 2x + 4 can be negative or positive so we have 2x + 4 >8 and 2x + 4 < - 8 solve both inequalities

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anonymous
  • anonymous
the second one needs to be negative as well, but to graph you need to use open circles and it will be an or statement i believe
anonymous
  • anonymous
what do u mean by the second one has to be negative?
welshfella
  • welshfella
@MoOse your method is incorrect
anonymous
  • anonymous
do the signs change when i solve the second equation? @welshfella
welshfella
  • welshfella
No in both equation you subtract 4 form both sides and then divide both sides by 2
welshfella
  • welshfella
the inequality sign only changes when you divide by a negative
anonymous
  • anonymous
to graph would it be open circle or closed circle?
welshfella
  • welshfella
open
anonymous
  • anonymous
ok thank you

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