1-3 Using Variable Flashcards
1
Q
whole number
A
1,2,3
2
Q
numerical number
A
0,1,2,3
3
Q
integers
A
-2,-1,0,1,2
4
Q
rational number
A
is any number that you can write with the form a/b
5
Q
irrational number
A
cannot be expressed in the form a/b where a and b integers.
6
Q
real number
A
rational number and irrational numbers form set of…
7
Q
counterexample
A
any example that proves a statement false is a…
8
Q
inequality
A
is a mathematical sentence that compares the value of 2 expressions using an inequality symbol, such as <, >, =.
9
Q
Opposites
A
two numbers that are the same distance from zero on a number line but lie in opposite directions are…
10
Q
absolute value
A
a number is its distance from 0 on a number line