Domain of 4 Expressions

Discussion in 'Algebra' started by nycmathguy, Oct 16, 2021.

  1. nycmathguy

    nycmathguy

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    Let R = all real numbers

    For part (a), the domain is R.

    For part (b), I must set denominator to 0 and solve for t.

    t - 1 = 0

    t = 1

    t + 3 = 0

    t = -3

    The domain is R except for t = 1 and t = -3.

    For part (c), a, b, and c are constant. The expression is a quadratic. The domain is R.

    For part (d), I will rewrite the expression.

    4x + 3(x^-1) can be rewritten as 4x + 3/(x).

    I say the domain is R except for x = 0.
     
    nycmathguy, Oct 16, 2021
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  2. nycmathguy

    MathLover1

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    perfect
     
    MathLover1, Oct 22, 2021
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    nycmathguy likes this.
  3. nycmathguy

    nycmathguy

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    It's always good to revisit the early topics.
     
    nycmathguy, Oct 22, 2021
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