This week in Pre- Cal 11 I learned about **Absolute Value and Radicals**.

Absolute Value of a real number is defined as the principle square root of the square of a number, Principle Square Root is always a positive number, Square of a number is but is you have it is always a positive number in absolute value so it would be for both . Absolute value is always the distance from zero.

When using **R****oots & Radicals: **the the number in front of the root is the coefficient. if you have a square root it is always a positive in the radicand and the index is always a 2. If you have a cute root it is either negative or positive in the radicand and the index is always 3. The higher roots can be