T22edwards
T22edwards T22edwards
  • 27-01-2017
  • Mathematics
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Solving Inequality's

Solving Inequalitys class=

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TheHero
TheHero TheHero
  • 27-01-2017
How can I send you the drawn representation on number line ?

25)

z + 4 >= 2z

-z >= -4

z <= 4  (you flip the sign when you divide over negative number)

on number line:  from 4 to -infinity

you use normal arithmetic like equations

29)

-9 + 2a < 3a

-9 < a  (just one step done)

on number line from -9 to infinity

41 and 43 ? not in the page 


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