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Math Help - Power Function

  1. #1
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    Power Function

    This may be an odd question, but could anyone explain to me why the "general form" of a linear function:

    y=mx+b

    ... has a "+b" term, ie a y intercept, and yet the "general form" of a power function as I under it:

    y = ax^b

    is lacking a "+something" term?

    appreciate your thoughts
    thx
    B
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  2. #2
    is up to his old tricks again! Jhevon's Avatar
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    Quote Originally Posted by NYKarl View Post
    This may be an odd question, but could anyone explain to me why the "general form" of a linear function:

    y=mx+b

    ... has a "+b" term, ie a y intercept, and yet the "general form" of a power function as I under it:

    y = ax^b

    is lacking a "+something" term?

    appreciate your thoughts
    thx
    B
    it can have the plus something, but it doesn't have to. i would call that form, the "basic form" maybe. the general form would be more like:

    y = a_nx^n + a_{n - 1}x^{n - 1} + ... + a_2x^2 + a_1x + a_0
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