Respuesta :

mathmate
Domain refers to the x-axis.

We see clearly that domain does NOT include the interval from -3 to +3.

Therefore the domain is from -∞ to -3 or from +3 to ∞.

The correct answer is:

{x | x ≤ -3 or x ≥ 3}

Explanation:

There are no points on the graph between x = -3 and x = 3.  There are, however, points on the graph where x is less than 3 and where x is greater than 3.  This means that the points where x is less than or equal to 3 and where x is greater than or equal to 3 are the domain.

Otras preguntas

Q&A Education