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4 Written questions
4 Multiple choice questions
 equation that contains radicals with variables in the radicand
 a number or ratio (a value on a scale of measurement) derived from a series of observed facts
 When f(g(x)) = x, and g(f(x) = x .
 a set of ordered pairs obtained by switching the coordinates in a relation
4 True/False questions

square root functions → f(x)= √x
Constant second differences between xvalues for for evenly spaces yvalues. 
principal root → The nonnegative square root of a number.

like radicals → The number or expression inside a radical symbol

radicand → radicals that have the same radicand