#Sign diagrams into interval notations

22 messages · Page 1 of 1 (latest)

mighty schoonerBOT
slow plover
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so for fractions you cant solve them normally and its made en more complicated w the -1. so take -1 to the other side

neon turret
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how do u change that to an interval notation tho

slow plover
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yeah wait

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@neon turret

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lmk if you have any confusion

neon turret
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Ohh thank you sm

slow plover
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i have a shitty way of solving this without elaborate working but idt it helps w all sorts of questions

neon turret
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Ok so if the interval is positive

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Then it’s like x<2?

slow plover
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so ur saying if it was x-1/x-2 > -1?

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the answer would be smth like x<2 and x>3
u have to do the working to be sure

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for fractions you have to solve like normal algebra first but unlike linear inequalities you can't just change sides and do stuff, so u have to take critical value and then make a sign diagram

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drawing a small quadratic graph instead of a sign diagram is less messy imo

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smth like this

distant wraith
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Hi

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Is it still unsolved

slow plover
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hopefully not

neon turret
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OH TYSM

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.solved