1.3.2 Evaluating Absolute Value Expressions

Question 1

absolute value

Answer 1

• any number represents its positive distance to 0 on a number line
• If the quantity inside the absolute value notation is positive or equal to 0, its absolute value is just itself.
• If the quantity inside the absolute value notation is negative, then its absolute value is the negative of itself.

Question 2

Absolute value notation

Answer 2

two vertical lines around the quantity; e.g., |7|, |a – 2c – 5|.