R.2 Flashcards
{x| x is a vowel of the English alphabet}
Label parts
{set of , x all x, | such that, x is a vowel of the English language
What is a collection of mathematical terms
A set
Natural number
Counting numbers
1,2,3,4,5…
Whole number
Natural numbers plus 0
0,1,2,3,4…
Integer
All whole numbers on both sides of number line
-3,-2,-1,0,1,2,3…
Rational number
A number that can be expressed as a fraction, ratio or repeating decimal
Irrational number
Cannot be written as ratio or repeating decimal
A<B
A is less than B
A>B
A is greater than B
On a number line a full dot means?
The point is included in set
A [ bracket] in a set means?
The point is included
A open dot in a set means?
The point is not included in the set
A (parenthesis) on a number line means
The point is not included
Procedure for interval notation
Smaller number first, comma larger number
Same parenthesis and bracket notation as number line
(-B,B)
