Using the app

Listen to a graph and use the graph canvas with a keyboard

Hear a curve as a rising and falling tone, get a written description of the graph, and pan, zoom and trace with keys.

Open in Trident

1. Select a y = line, then tap the speaker button on the graph. The curve plays from left to right: a higher pitch means higher on the graph, and a click marks each crossing of the x-axis.
2. Tap the description button (under the speaker) to show a written description of every line: its shape, intercepts, highs and lows.
3. With a keyboard, Tab to the graph. Arrow keys move the view, + and − zoom.
4. Select a line in the list, then press Enter on the graph to trace it. Left and right arrows walk along the curve (Shift for bigger steps), and the coordinates are announced.
5. While tracing, Page Down and Page Up (or N and Shift+N) jump between points of interest. Escape stops tracing.
6. In the list, Enter adds a line, the up and down arrows move between lines, and Backspace on an empty line removes it.

Tips

• Errors and changes are announced to screen readers.

Related guides

• Graph equations by typing them (graph canvas)Open the graph canvas, type equations the way they are written in your textbook, and watch them drawn as you type.
• Accessibility featuresScreen reader names for every key, keyboard use, a high-contrast skin, key tooltips and 15 languages.
• Type with your computer keyboardOn a computer, tablet keyboard or Chromebook, you can type numbers, operators and common functions instead of tapping the keys.