Determine the domain and range from a graph

The video tutorial explains how to find the domain and range of a graph. It begins by introducing the concepts of domain and range as relationships between coordinate points. The tutorial then explains how to represent these relationships graphically and how to identify the domain and range from ordered pairs. It covers the concept of continuous functions and the infinite number of points between them, concluding with how to determine the domain and range for continuous graphs, which extend to infinity.

What does the domain of a graph represent?

• All possible X values

• The slope of the graph

• The relationship between X and Y values

• All possible Y values

How can you express a point on a graph?

• As a range

• As an ordered pair

• As a fraction

• As a single number

Which of the following is an example of an ordered pair?

• X * Y

• X - Y

• X + Y

• (X, Y)

What does it mean if a function is continuous?

• It only covers positive values

• It has an infinite number of points

• It has a limited number of points

• It has breaks in the graph

What is the domain of a continuous function that extends indefinitely in both directions?

• All positive numbers

• All negative numbers

• All real numbers

• Only integers