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Math Help - Find image

  1. #1
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    Find image

    Ok, this is the last one before I call it quits for the weekend.

    Let A = {0, 1, 2, 3, 4, 5} and let B = {0, 1, 2, 3, 4, 5, 6}.
    Define by the rule g(x) = |x 3|

    1. What is the image of g?
    I think the image of g would be {0,1,2,3}

    2. What is {x \in B | x  1 \in A }
    ... I think this would be {0, 1, 2, 3, 4, 5, 6}??

    Please tell me I'm correct
    Last edited by relyt; March 29th 2009 at 04:06 PM.
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  2. #2
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    Quote Originally Posted by relyt View Post
    Ok, this is the last one before I call it quits for the weekend.

    Let A = {0, 1, 2, 3, 4, 5} and let B = {0, 1, 2, 3, 4, 5, 6}.
    Define by the rule g(x) = |x 3|

    What is the image of g?
    I think the image of g would be {0,1,2,3}
    Correct.
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  3. #3
    Junior Member
    Joined
    Mar 2009
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    Yes!!

    Is the 2nd part of my question correct as well?

    Let A = {0, 1, 2, 3, 4, 5} and let B = {0, 1, 2, 3, 4, 5, 6}.
    Define by the rule g(x) = |x – 3|

    2. What is {x \in B | x – 1 \in A }
    ... I think this would be {0, 1, 2, 3, 4, 5, 6}??
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