Exploring Domain and Range of Discrete Graphs

What does it mean for a function to be discrete?

• It includes all possible values on the graph.

• It has a continuous line.

• It only includes specific points for specific values.

• It has no points.

How can you identify a discrete graph?

• It has a continuous line.

• It has a dashed line.

• It has only dots.

• It has no points.

What does the domain of a function represent?

• All the y values of the data.

• All the x values of the data.

• The function's output.

• The range of the data.

What is the range of a function?

• All the y values of the data.

• All the x values of the data.

• The function's input.

• The domain of the data.

What is the vertical line test used for?

• To see if any y values repeat.

• To determine if a function is discrete.

• To check if a graph is continuous.

• To see if any x values repeat.

When listing the domain of a discrete function, in what order should the x values be written?

• From greatest to least.

• In any order.

• From least to greatest.

• In alphabetical order.

How should repeated y values be handled when listing the range?

• List them in a separate set.

• List them multiple times.

• List them only once.

• Do not list them at all.

What is the first step in graphing points from a table?

• Draw the x and y axes.

• Check if the function is discrete.

• State the domain and range.

• Plot the points on the graph.

In a mapping diagram, where are the x values placed?

• In the middle.

• At the bottom.

• On the left side.

• On the right side.

What indicates that a set of points is a function in a mapping diagram?

• All points are connected.

• Each y value has a line coming off of it.

• There are no lines.

• Each x value has a line coming off of it.