Answering Graphing Questions

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.

The WebAssign graphing tool currently supports points, rays, segments, lines, circles, and parabolas. Inequalities can also be indicated by filling one or more areas.

Note: Adobe® Flash® Player, version 10 or later is required. See Required Browser Plug-Ins.

When you work on a graphing question, the WebAssign graphing tool displays below the question.

graphing tool with tools palette and graph of a parabola and line segment

The middle of graphing tool is the drawing area. It contains labeled coordinate axes, which may have different axis scales and extents depending on the nature of the question you are working on. When you move your mouse over the drawing area, you'll notice that the cursor location is shown inside the Graph toolbar on the right.

On the left side of graphing tool is the list of Tools that lets you create graph objects, select objects to edit, and create fills.

The bottom of the graphing tool holds the Object Properties toolbar, which becomes active when you have a graph element selected. This toolbar shows you all the details about the selected graph object, and also lets you edit properties of that object or delete it from your graph.

Depending on the question, the graphing tool might display both x and y axes, or only the x axis. If only the x axis is displayed, you can specify only x coordinates; the y coordinate will always be 0. The maximum and minimum allowed values on the graph in the graphing tool are also dependent on the question.

  1. Use the WebAssign graphing tool to graph the objects that represent your answer.

    Task

    Tool

    Steps

    Graph a point
     point button
    1. Click the Point tool.
    2. Click a location in the graph.
    Graph a line
     line button
    1. Expand the line tools, and click the Line tool.
    2. Click the location of the first point on the line.
    3. Click the location of a second point on the line.
    Graph a ray
     ray button
    1. Expand the line tools, and click the Ray tool.
    2. Click the location of the endpoint of the ray.
    3. Click the location of a second point on the ray.
    Graph a line segment
     segment button
    1. Expand the line tools, and click the Line Segment tool.
    2. Click the location of one endpoint of the line segment.
    3. Click the location of the second endpoint of the line segment.
    Graph a circle
     circle button
    1. Click the Circle tool.
    2. Click the of the center of the circle.
    3. Click the location of a point on the circle.
    Graph a parabola with horizontal symmetry
     parabola with horizontal symmetry button
    1. Expand the parabola tools, and click the parabola tool with horizontal symmetry.
    2. Click the location of the vertex of the parabola.
    3. Click the location of another point on the parabola.
    Graph a parabola with vertical symmetry
     parabola with vertical symmetry button
    1. Expand the parabola tools, and click the parabola tool with vertical symmetry.
    2. Click the location of the vertex of the parabola.
    3. Click the location of another point on the parabola.
    Indicate that no solution exists
     no solution button
    1. Click the No Solution tool.
    2. If any objects are currently on the graph, a confirmation dialog is displayed. Click Yes to confirm that you want to clear the graph.
    Select an object to change
     selection button
    1. Click the Selection tool.
    2. Click the object in the graph that you want to change.
    Change an object's coordinates
    1. Select an object in the graph.
    2. In the Object Properties below the graph, enter values for the object's center, vertex, or points.
    3. Enter the coordinates precisely. You can type decimal values, or you can type fractional values using the forward slash character, as in 2/3.
    4. The graphing tool does not accept values that are outside of the displayed coordinate grid.
    Move an object with the mouse
    1. Select an object in the graph.
    2. Click and drag the object to a new location.
    Move an object with the keyboard
    1. Select an object in the graph.
    2. Press the cursor keys to move the object by single units up, down, left, or right.
    Reshape an object with the mouse
    1. Select an object in the graph.
    2. Click and drag the center, vertex, or specified point to a new location.
    Fill a region of the graph to specify inequality
     fill button
    1. Graph one or more boundaries for the inequality.
    2. Click the Fill tool.
    3. Click a location in the region that should be filled.
    Clear a filled region of the graph
     fill button
    1. Click the Fill tool.
    2. Click a location in the filled region that should be cleared.
    Set an open endpoint for a ray or line segment
     open endpoint button
    1. Select a ray or line segment in the graph.
    2. Click the Open Endpoint tool for the endpoint that should be open.
    Set a closed endpoint for a ray or line segment
     closed endpoint button
    1. Select a ray or line segment in the graph.
    2. Click the Closed Endpoint tool for the endpoint that should be closed.
    Set a dashed line style to specify inequality
     dash button
    1. Select an object in the graph.
    2. Click the Dash tool to graph the object as a dashed line or curve.
    Set a solid line style
     solid button
    1. Select an object in the graph.
    2. Click the Solid tool to graph the object as a solid line or curve.
    Delete an object
     delete button
    1. Select an object in the graph.
    2. Click Delete or press Delete on the keyboard.
    Delete all objects
     clear all button
    1. Click Clear All.
    2. If any objects are currently on the graph, a confirmation dialog is displayed. Click Yes to confirm that you want to clear the graph.
    View help for the graphing tool
    1. Click Help in the lower left corner of the graphing tool.
    Tip:
    • When you are setting or moving a point on the graph, dashed coordinate lines and coordinate values are displayed to help you.
    • You can specify coordinates for objects when you are creating them by typing values in the Object Properties section of the graphing tool.
    • You can click the endpoint of an unselected ray or line segment to toggle it between closed and open.
    • You can print a graph by using your browser's print function.
  2. Click either Submit New Answers to Question or Submit Whole Question, depending on the submission options for the assignment. A correct or incorrect icon displays in the lower right corner of the graphing tool.