1-3 exploring real numbers

Question 1

rational number

Answer 1

any number that you can write in the for of a/b

Question 2

irrational number

Answer 2

cannot be expressed in the form of a/b

Question 3

real numbers

Answer 3

rational numbers and irrational numbers from the set

Question 4

counterexample

Answer 4

you need only one counterexample to prove that a statement is false, while a proof to show that a statement is true may be complicated

Question 5

inequality

Answer 5

is a mathematical sentence that compares the value of two expressions using an equality symbol

Question 6

opposites

Answer 6

two numbers that are the same distance from zero on a number line but lie in opposite directions