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What is the domain of the function

1
f(x) =
√x+2?
x+ 2 ?
0.0 0
X-6
O x>6
O x<6
X2-6

User BobbyP
by
9.1k points

1 Answer

3 votes

Answer:

The domain of a function refers to the set of all possible input values, or x-values, for which the function is defined. To determine the domain of the function f(x) = √(x+2), we need to consider any restrictions or limitations on the input values.

In this case, the function involves taking the square root of (x+2). The square root function is defined for non-negative real numbers. This means that the expression inside the square root, x+2, must be greater than or equal to zero in order for the function to be defined.

To find the domain, we set x+2 ≥ 0 and solve for x:

x+2 ≥ 0

x ≥ -2

So the domain of the function f(x) = √(x+2) is all real numbers greater than or equal to -2. In interval notation, we can express this as (-2, ∞). This means that any x-value greater than or equal to -2 is included in the domain of the function.

To summarize, the domain of the function f(x) = √(x+2) is x ≥ -2, or in interval notation (-2, ∞).

User Edmundito
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