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How do you know which way the inequality (if that’s what it’s called) sign is? watch

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    In this question I have to figure out what the equations of the lines are and I get how to do that but I don’t understand how you know which sign to choose? greater than or equal to or less than etc

    For example if you look at the line labelled 1 in the picture I knew it was y = 2 but where does the sign come into play?

    Sorry if I’m being really stupid I just get confused and you can’t type everything into google but have to ask and there’s no one around Name:  AD854435-E95E-4413-94C2-BFD20B7FCBC2.jpg.jpeg
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    well you could put 2>Y<2 and -4<X<4 ( the < is supposed to be more than equal too, but I don't know how to put that on the keyboard.)
    I have no idea if the question needs you to put that in or you could just put y=2 and -4<x<4 (You could put x is infinite somehow I can't remember how though.)
 
 
 
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Updated: February 16, 2018
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