Interval Notation

MsTaylor23 · #1 Jun 7, 2007, 02:28 PM

2<2x+4<10

The answer I got is:

2>2x+4 or 2x+4<10

-2>2x or 2x<6

-1>x or x<3

snoopycool24 · Jun 8, 2007, 05:32 PM

Why did you flip the interval sign?

2<2x+4 to 2>2x+4

MsTaylor23 · Jun 9, 2007, 12:14 AM

So I would leave the sign the way it was and is my answer correct??

asterisk_man · Jun 9, 2007, 03:00 PM

yes, -1<x<3
you don't have to split into two parts. just do the same thing to every portion.



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