WebAssign NumberLine™ questions require you either to draw objects or to place labeled points on a number line.

Note Adobe® Flash® Player, version 10 or later is required. See Other Software.

iPad only: Flash is not required.

Most NumberLine questions require you to draw objects, for example, to graph an interval or inequality. For these questions, NumberLine is displayed with all of the tools active below the number line.

Some NumberLine questions require you to place labeled points on the number line. For these questions, a set of labeled points is displayed above the number line and the drawing tools below the number line are not active.

Plot your answer on the number line or indicate that no solution exists.
Note
• Depending on which type of NumberLine question you are answering, some actions will not be available.
• Two objects or points cannot be placed at exactly the same position on the number line.
To do thisDo this

Graph a point — a closed circle, an open circle, a parenthesis, or a bracket

1. Click if it is not already selected.
2. Drag one of the point symbols —  — to the correct location on the number line.
Note A menu of point symbols is displayed above the point. If needed, you can click a different symbol to be displayed.
1. Tap the point symbol you want to graph — .
2. Tap the correct location for the point symbol on the number line.

Draw a line, line segment, or ray

1. If needed, graph one or more endpoints.
2. Click .
3. Click on the number line where you want to draw the line, segment, or ray.

Place a labeled point on the number line

1. Click if it is not already selected.
2. From the holding area above the number line, drag the point to the correct location on the number line.

Indicate that no solution exists

Click .

Any objects currently on the number line are removed.

Change a point

1. Click if it is not already selected.
2. Click the point you want to change.

A menu of point symbols is displayed above the selected point.

3. Click the symbol you want to use.

Move a point

1. Click if it is not already selected.
2. Drag the point you want to move to a new location.

Erase an object

1. Click .
2. Click the object you want to remove.

Any lines, segments, or rays touching the object are also erased.

Erase everything from the number line

1. Click .

A message is displayed to confirm that you want to remove everything from the number line.

2. Click OK.

Undo the last action

Click .

View help for the NumberLine tool

Click .