An interval as a set of numbers. Numbers = endpoints.
Simplify a<0 Simplify a>5 Therefore, a<0 or a>5 Display the interval notation for: a<0ora>5
Interval Notation Definition:
An interval as a set of numbers. Numbers = endpoints.
Since we have an or statement We break this up into two pieces Piece 1 → a<0 Piece 2 → a>5
Evaluate Piece 1
You entered the < sign Start on the right side of a<0
Build the interval notation for a:
No equal sign translates to ). Do not include the number 0 The left side extends to -∞
(-∞,0)
Set Builder Notation for a:
{ a | a<0 } where | denotes such that
Evaluate Piece 2
You entered the < sign Start on the left side of a>5
Build the interval notation for a:
No equal sign translates to (. Do not include the number 5 The right side extends to +∞
(5,+∞)
Set Builder Notation for a:
{ a | a<0 } where | denotes such that
Form our interval notation for a:
(-∞,0) U (5,+∞)
Display the literal notation for a
6,7,8,9,10,11,12,13,14,15,...,∞
What is the Answer?
(5,+∞)
How does the Interval Notation and Set Builder Notation Calculator work?
Free Interval Notation and Set Builder Notation Calculator - This calculator translates the following inequality statements to interval notation and set builder notation:
* x < 5
* y <= 5
* z > 5
* a >= 5
* b < 5 or b > 20
* Compound Inequality such as 0 <= c < 4
* |x|<3
* Reverse Interval Notation to Inequality Statement such as (-7,5]
* {x|x<1}
* Word representations of interval notations such as 2 is less than or equal to x is less than or equal to 8 This calculator has 2 inputs.
What 2 formulas are used for the Interval Notation and Set Builder Notation Calculator?
Equal sign means you use a brace No equal sign means you use a parentheses