7.1: Roots and Radical Expressions

Question 1

Nth Root

Answer 1

For any real numbers a and b, and any positive interger, n, if a^n = b, then a is a —– of b.

Question 2

Radicand

Answer 2

A radical sign is used to indecate a root. The number under the radical sign is the —–.

Question 3

Index

Answer 3

The —– gives the degree of the root.

Question 4

Principal Root

Answer 4

When a number has two real roots, the positive root is called the —– and the radical sign indicateds the —–.