1.3 Exploring Real Numbers Flashcards
1
Q
Natural Numbers
A
The counting numbers
2
Q
Whole numbers
A
3
Q
Intergers
A
4
Q
rational numbers
A
a rational number is any number that you can wright in the form a/b
5
Q
irrational number
A
an irrational number cannot be expressed in the for a/b
6
Q
real numbers
A
together rational numbers and irrational number from the set of real numbers
7
Q
counterexample
A
any example that proves a statement false is a counterexample
8
Q
inequality
A
an inequality is a mathematical sentence that compares the value of two expressions using an inequality symbol
9
Q
opposites
A
two number that are the same distance from zero on a number line but lie in opposite directions are opposites
10
Q
absoloute value
A
the absolute value of a number is its distance from 0 on a number line
