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Math Help - basic function problem... need help

  1. #1
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    basic function problem... need help

    Just started my first college math class today, been out of the ropes on Math the past couple years. how would i go about determining the domain of p(a)=√5a-2
    any help with steps would greatly be appriciated
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  2. #2
    MHF Contributor undefined's Avatar
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    You should use parentheses to make clear whether you mean (√5)a-2 or (√(5a))-2 or √(5a-2). Or learn LaTeX.

    Anyway, you determine the domain with the knowledge that whatever's under the radical can't be negative, when working in real numbers.
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  3. #3
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    its √(5a-2)
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  4. #4
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    Quote Originally Posted by mp63101010 View Post
    its √(5a-2)
    as stated by undefined ... 5a-2 \ge 0

    finish it.
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