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Master Math: Algebra 2 by Mary Hansen

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Chapter 7Radical Functions and Relations

7.1 Square Root Function

7.2 nth Roots

7.3 Working with Radical Expressions

7.4 Rational Exponents

7.5 Radical Equations

7.1 Square Root Function

If a function includes the square root of a variable, it is called a square root function. The parent function is Images. The domain of the parent function is x ≥ 0 since the square root of a negative number is not defined over the set of real numbers. Furthermore, the range of the parent function is f(x) ≥ 0 since the square root of a number is positive.

Images

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