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• A radical functions is a function which contains a variable inside a root, for example: $y = \sqrt x$ , $y = {^3}\sqrt{{x - 5}}$, $y = 2{^4}\sqrt{{3x - 8}} + 11$
1. Basic Radical Function: $y = \sqrt x$
1. Use a table of values, sketch the graph of the function $y = \sqrt x$ .