Use Graphing Tool on an iPad

The WebAssign graphing tool lets you graph one or more mathematical elements directly on a set of coordinate axes. Your graph is scored automatically by WebAssign when you submit the assignment for grading. You can answer graphing tool questions in Safari on iPad with iOS 5 or later.

graphing tool question

To use the iPad version of the graphing tool, you select objects by tapping object buttons and plot objects on the graph by tapping points in the graphing area.

You can refine and change the properties of any object you plot by using Graph Layers. To view Graph Layers, click the arrows in the upper-right corner of the graphing tool or select an object on the graph.

graph layers

Basic Graphing Tool Tasks

The following table describes how to perform basic graphing tool tasks using the iPad.

Task

Steps

Choose an object to graph

Tap the object.

If the object you want to graph is part of a drawer:
  1. Tap the object button shown on the tools menu to expand the drawer.
  2. Tap the object you want to graph.
Tip: An object's button is highlighted in blue when it is selected.
Graph a point
  1. Tap the Point button.
  2. Tap a location in the graph.
Graph a line, ray, or line segment
  1. Expand the line tools, and tap the object you want to graph.
  2. Tap the location of the first point.
  3. Tap the location of a second point.
Graph a circle
  1. Tap the Circle button.
  2. Tap the location of the center of the circle.
  3. Tap the location of a point on the circle.
Graph a parabola
  1. Expand the parabola tools, and tap the object you want to graph.
  2. Tap the location of the vertex of the parabola.
  3. Tap the location of another point on the parabola.
Indicate that no solution exists
  1. Tap the No Solution button.
  2. If any objects are currently on the graph, a confirmation dialog is displayed. Click OK to confirm that you want to clear the graph.
Select an object to change
  1. Tap the Selection button.  selection button
  2. Tap the object in the graph that you want to select.

When an object is selected, the color of the object changes and Graph Layers expands to show the object's current properties.

Move an object
  1. If necessary, tap the Selection button.  selection button
  2. Touch an object in the graph to select it.
  3. Move your finger to drag the object to a new location.
Tip: You can also modify an object by changing its points using Graph Layers.
Reshape an object
  1. If necessary, tap the Selection button.  selection button
  2. Tap an object in the graph to select it.
  3. Touch the point you want to move.
  4. Move your finger to drag the center, vertex, or specified point to a new location.
Fill a region of the graph to specify inequality
Note: Making changes to the graph after you add fills will remove them, so make sure to fill regions last.
  1. Graph one or more boundaries for the inequality.
  2. Tap the Fill button.
  3. Tap a location in the region that should be filled.
Clear a filled region of the graph
  1. Tap the Fill button.
  2. Tap a location in the filled region that should be cleared.
Delete an object
  1. Select an object in the graph.
  2. Tap the Delete button.
Delete all objects
  1. Tap the Clear All button.

    If any objects are currently on the graph, a confirmation dialog is displayed.

  2. Tap Yes to confirm that you want to clear the graph.
View the answer key If your instructor has enabled it, you might be able to see the answer key for a question. This is typically allowed after you have used all of your submissions or after the due date has passed.

Tap the Show Key button.

View help for the graphing tool

Tap Help in the lower left corner of the graphing tool.

Graph Layers

Graph Layers allows you to modify objects plotted on the graph. You can use Graph Layers to change an object's coordinates, reshape objects, and set endpoints or dashed lines.

graph layers

The following table describes how to perform graphing tool tasks using Graph Layers.

Task

Steps

Open Graph Layers

Tap the arrows to the upper right of the graph.

graph layers arrow
Tip: You can also open Graph Layers by selecting an object.
Close Graph Layers

Tap the Graph Layers header.

View an object's properties

Tap an object name in Graph Layers.

Note: This will select the object in the graph.
Change an object's coordinates
  1. Select an object in the graph.
  2. In Graph Layers, change the values for the object's points.
Note: The graphing tool does not accept values that are outside of the displayed coordinate grid.
Move or reshape an object
  1. Select an object in the graph.
  2. In Graph Layers, change the values for the object's points.
Set an open endpoint for a ray or line segment
  1. Select a ray or line segment in the graph.
  2. In Graph Layers, tap the Open Endpoint button for the endpoint that should be open.
Set a closed endpoint for a ray or line segment
  1. Select a ray or line segment in the graph.
  2. In Graph Layers, tap the Closed Endpoint button for the endpoint that should be closed.
Set a dashed line style to specify inequality
  1. Select a solid object in the graph.
  2. In Graph Layers, tap the Dash button to graph the object as a dashed line or curve.
Set a solid line style
  1. Select a dashed object in the graph.
  2. In Graph Layers, tap the Dash button to graph the object as a solid line or curve.