How to write the domain and range from the graph of a polynomial

The video tutorial explains the concepts of domain and range in graphs. It begins by defining the domain as the set of all X values and describes how the graph extends to negative and positive infinity. The tutorial highlights the continuous nature of the graph, emphasizing that there are no breaks. It then transitions to discussing the range, defined as the set of all Y values, and explains how the graph extends from negative to positive infinity. The video concludes by summarizing these key points.

What does the domain of a graph represent?

• All possible X values

• The highest point on the graph

• The lowest point on the graph

• All possible Y values

If a graph extends infinitely to the left, what does this imply about its domain?

• The domain is limited to positive values

• The domain is limited to zero

• The domain includes only positive values

• The domain includes all negative values

What is the domain of a graph that extends infinitely in both directions?

• From zero to negative infinity

• From negative infinity to positive infinity

• From negative infinity to zero

• From zero to positive infinity

What does the range of a graph represent?

• The horizontal extent of the graph

• All possible Y values

• All possible X values

• The vertical extent of the graph

If a graph extends infinitely upwards and downwards, what is its range?

• From negative infinity to zero

• From zero to negative infinity

• From zero to positive infinity

• From negative infinity to positive infinity