anonymous
  • anonymous
why do you change the symbol of an inequality when you mulitply or divied by a negative please help me i really need help
Mathematics
chestercat
  • chestercat
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anonymous
  • anonymous
because if you multiply 8 by -3…for example…and it was greater than the other side, it has suddenly "flipped" to the other side of zero. Make sense?
anonymous
  • anonymous
its an identity -4 < 5 yes? multiply both by -1 and 4 > -5
anonymous
  • anonymous
yea sorta but how does that aply to evry inequality

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Zarkon
  • Zarkon
assume a
anonymous
  • anonymous
if while simplifying one you end up with a negative variable between two values, to remove the negative you multiply all by -1 ( and switch the inequalities )
anonymous
  • anonymous
ok. so if you have a positive number, and multiply it by a negative number, it is now negative/on the other side of zero. if you have a negative number and multiply it by another negative, it becomes positive,ending on the opposite side of zero that it was originally.
anonymous
  • anonymous
oh okay thank you all for helping me
anonymous
  • anonymous
no prob. ; )
anonymous
  • anonymous
and for sure its correct
anonymous
  • anonymous
?

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