Mathsadness
  • Mathsadness
Solve |1-2x| > x+1
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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mathteacher1729
  • mathteacher1729
Graph \[y_1 = |1-2x|\] and \[y_2=x+1\] Find the intervals where \(y_1\) is above \(y_2\), and that's that. :)
Mathsadness
  • Mathsadness
without graphing?
amistre64
  • amistre64
|1-2x| = (1-2x) AND (-1+2x) 1-2x > x+1 -1+2x>x+1 0 > 3x 3x > 2 0>x x > 2/3

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amistre64
  • amistre64
ugh..... that left is off
mathteacher1729
  • mathteacher1729
Nicely done! Here is the pic to tie it all together. :)
amistre64
  • amistre64
-1+2x > x+1 ; -x and +1 x > 2
amistre64
  • amistre64
(-inf,0) U (2,inf)
anonymous
  • anonymous
another way to do this is to square both sides to find the critical points in this case 0 and 2 and to test for x <0, 02 .

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