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Range in function Watch

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    Hi
    Need help
    State range of function
    n (x)=x^2+5 for domain x>_(less than or equal to )2


    I have drawn graph
    4+5=9
    So I think that range is between 5 and 9
    n (x) is greater than 5 and less than or equal to 9

    But it's answer is n ( x ) greater or equal to 9

    Can some one explain me
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    (Original post by Qer)
    Hi
    Need help
    State range of function
    n (x)=x^2+5 for domain x>_(less than or equal to )2


    I have drawn graph
    4+5=9
    So I think that range is between 5 and 9
    n (x) is greater than 5 and less than or equal to 9

    But it's answer is n ( x ) greater or equal to 9

    Can some one explain me
    That's because you are, for some reason, thinking of x \leq 2 when the question clearly states (and you've even use the symbol for it) that x \geq 2
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    (Original post by RDKGames)
    That's because you are, for some reason, thinking of x \leq 2 when the question clearly states (and you've even use the symbol for it) that x \geq 2
    OK
    You are right
    But I'm still confused about it
    As I'm thinking
    Starting point of graph is 5 and ending point is 9 so how ito can be greater than 9

    Can you please explain meName:  20170715_184458.jpg
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    (Original post by Qer)
    OK
    You are right
    But I'm still confused about it
    As I'm thinking
    Starting point of graph is 5 and ending point is 9 so how ito can be greater than 9

    Can you please explain me
    Why do you think it ends at 9?
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    (Original post by RDKGames)
    Why do you think it ends at 9?
    OK got it😆
    ( I am trying to relate with other question but that was different from this
    I undersood now as at 2 y value is 9 and at 3 y will be 12 so it is increasing after 9
    That's why range is greater than 9

    Thanks by the way
 
 
 
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