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Pleaseeee helppppp!!!!!!!!!!

Pleaseeee helppppp!!!!!!!!!!-example-1
User Futu
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Answer:[-7, ∞)

Explanation:

To find the domain of the radical function f(x) = √(x + 7), we need to consider the values of x that make the function defined.

1. The function f(x) is defined as the square root of the expression x + 7.

2. For the function to be defined, the expression inside the square root (√) must be non-negative, as we cannot take the square root of a negative number in real numbers.

3. To ensure the expression inside the square root (√) is non-negative, we set x + 7 ≥ 0 and solve for x.

x + 7 ≥ 0

x ≥ -7

4. Therefore, the domain of the function f(x) = √(x + 7) is all real numbers greater than or equal to -7. In interval notation, the domain can be written as . This means that any value of x greater than or equal to -7 is valid for the function.

User Piotr Lopusiewicz
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