determine the domain of functions worked example:
Determining domain word problem (real numbers) worked example:
Key Overview & Analysis
Determining domain word problem (positive integers)
the sequence of graphs in figure 2 also help us identify the domain and range of the square root function.
⚡ Read Full Story & Exclusive Updates →In figure 2 (a), the parabola opens outward indefinitely, both left.
sep 12, 2016 · this precalculus video tutorial explains how to find the domain of a square root function and how to write the domain of a rational function using interval n.
I. e. , the square root function domain is [0, ∞).
Note that it includes 0 as well in the domain.
In general, the square root of a number can be either positive or negative.
I. e. , √25 = 5.
to find the domain of a function, consider any restrictions on the input values that would make the function undefined, including dividing by zero, taking the square root of a.
more generally, the domain of a composite square root function √ 𝑔 (𝑥) can be identified by finding the values of 𝑥 satisfying 𝑔 (𝑥) ≥ 0.
Let us consider a few examples where we identify.
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