Question

X≤3 convert to interval notation

Answer 1

To convert the inequality x≤3 into interval notation, it is written as (-∞, 3], including all numbers up to and including 3.

Step-by-step explanation:

To convert the inequality x≤3 into interval notation, you recognize that this inequality includes all real numbers up to and including 3. In interval notation, this is expressed as (-∞, 3], where the parenthesis indicates an open end that does not include the number -∞ (since ∞ is not a number that can be reached or included), and the square bracket indicates a closed end that includes the number 3.

Answer 2

3 is greater or equal to x so 3 gets a bracket and the infinity symbol always gets a parenthesis even if it’s a negative