1.1 properies of real numbers

Question 1

opposite or additive inverse

Answer 1

any number a is -a. the sum of opposites is 0

Question 2

reciprocal or multiplicative inverse

Answer 2

of any nonzero number a is 1/a. the product of reciprocals

Question 3

absolute value of a real number

Answer 3

is its distance from zero on the number line