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Math Help - Limit Problems Help

  1. #1
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    Limit Problems Help

    Hi guys thanks for helping me here's the questions.
    1) Evaluate each limit via direct reasoning or an algebraic approach. Where appropriate, use infinity (or -infinity) in your answer.

    lim x->2 x+5/x-2
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  2. #2
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    bump please help...
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  3. #3
    Senior Member vincisonfire's Avatar
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    Limit doesn't exist because it goes to - infinity when you approach from the left and + infinity when you approach from the right.
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  4. #4
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    Quote Originally Posted by vincisonfire View Post
    Limit doesn't exist because it goes to - infinity when you approach from the left and + infinity when you approach from the right.

    I really don't understand how you got that..
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  5. #5
    Senior Member vincisonfire's Avatar
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    Evaluate values close to two or do the graph.
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  6. #6
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    Quote Originally Posted by vincisonfire View Post
    Evaluate values close to two or do the graph.
    I'm stuck on this problem

    lim x-> infinity (4x-3)/(7x+8)
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  7. #7
    ddt
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    Quote Originally Posted by quigee View Post
    I'm stuck on this problem

    lim x-> infinity (4x-3)/(7x+8)
    Add a constant to the numerator so the fraction divides. Compensate of course by adding a second fraction with the same denominator.
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