What is the domain of this quadratic function? y = x^2 + 6x + 9 Choices: (A){x | x ≥ -3} (B){x | x ≥ 0} (C){x | x ≤ -3} (D)all real numbers

Function Domain Definition: The domain of a function refers to the set of all possible input values (x-values) for which the function is defined. For any quadratic function in the form y = ax^2 + bx + c, where a, b, and c are real numbers, the domain is always all real numbers because you can plug any real number into the function and get a real number out.Quadratic Function Domain: Since the function y = x^2 + 6x + 9 is a quadratic function, and there are no restrictions on the x-values (such as square roots or denominators that could become zero), the domain is all real numbers.

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What is the domain of this quadratic function? $\newline$ $y = x^2 + 6x + 9$ $\newline$ Choices: $\newline$ (A) $\{x | x \geq -3\}$ $\newline$ (B) $\{x | x \geq 0\}$ $\newline$ (C) $\{x | x \leq -3\}$ $\newline$ (D)all real numbers

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Algebra 1

Domain and range of quadratic functions: equations

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Q. What is the domain of this quadratic function?

\newline

y = x^2 + 6x + 9

\newline

Choices:

\newline

(A)

\{x | x \geq -3\}

\newline

(B)

\{x | x \geq 0\}

\newline

(C)

\{x | x \leq -3\}

\newline

(D)all real numbers

Function Domain Definition: The domain of a function refers to the set of all possible input values ( $x$ -values) for which the function is defined. For any quadratic function in the form $y = ax^2 + bx + c$ , where $a$ , $b$ , and $c$ are real numbers, the domain is always all real numbers because you can plug any real number into the function and get a real number out.
Quadratic Function Domain: Since the function $y = x^2 + 6x + 9$ is a quadratic function, and there are no restrictions on the $x$ -values (such as square roots or denominators that could become zero), the domain is all real numbers.