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

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

Draw a line, line segment, or ray 

Place a labeled point on the number line 

Indicate that no solution exists 
Click . Any objects currently on the number line are removed. 
Change a point 

Move a point 

Erase an object 
Any lines, segments, or rays touching the object are also erased. 
Erase everything from the number line 

Undo the last action 
Click . 
View help for the NumberLine tool 
Click . 