An interval as a set of numbers. Numbers = endpoints.
Since we have an or statement We break this up into two pieces Piece 1 → x<5 Piece 2 → >-5
Evaluate Piece 1
You entered the < sign Start on the right side of x<5
Build the interval notation for x:
No equal sign translates to ). Do not include the number 5 The left side extends to -∞
(-∞,5)
Set Builder Notation for x:
{ x | x<5 } where | denotes such that
Evaluate Piece 2
You entered the < sign Start on the left side of >-5
Build the interval notation for x:
No equal sign translates to (. Do not include the number -5 The right side extends to +∞
(-5,+∞)
Set Builder Notation for x:
{ x | x<5 } where | denotes such that
Form our interval notation for x:
(-∞,5) U (-5,+∞)
Display the literal notation for x
-4,-3,-2,-1,0,1,2,3,4,5,...,∞
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