Select the correct answer. What is the domain of f(x) = 2|x − 1| + 3? A. {x | x ≥ 3} B. {x | x < 1}

Question

Select the correct answer.
What is the domain of f(x) = 2|x − 1| + 3?

A.
{x | x ≥ 3}
B.
{x | x < 1}
C.
{x | x ≤ -1}
D.
{x | x = all real numbers}

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Nem 4 weeks 2021-08-18T03:48:47+00:00 1 Answers 0 views 0

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    2021-08-18T03:49:56+00:00

    Answer:

    D.

    {x | x = all real numbers}

    Step-by-step explanation:

    The domain of a function is the set of input or argument values for which the function is real and defined.

    The function has no undefined points nor domain constraints. Therefore, the domain is

    -\infty \:<x<\infty \:

    \mathrm{Domain\:of\:}\:2\left|x-1\right|+3\::\quad \begin{bmatrix}\mathrm{Solution:}\:&\:-\infty \:<x<\infty \\ \:\mathrm{Interval\:Notation:}&\:\left(-\infty \:,\:\infty \:\right)\end{bmatrix}\\

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )