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Domain and Range:
-
- Domain: All real numbers (
to ) - Range: All real numbers (
to )
- Domain: All real numbers (
-
- Domain:
( ) - Range:
( )
- Domain:
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The Deep Dive
For the function
, the domain is all real numbers since you can substitute any value for
. The range is also all real numbers, as for any
value, you can find an
that satisfies the equation.
For the function
, the domain is
because you need the expression inside the square root to be non-negative. The range starts from 0 (when
) and goes up to infinity, so the range is
.