| |
| | Curve sketching (Site not responding. Last check: 2007-10-24) |
 | | 1, 2, 3, or 10, 20, 30) then curves that are close indicate regions in which the rate of change of the function is large, whereas curves that are far apart indicate regions in which the rate of change of the function is small. |
 | | The number beside each curve is the value of the function to which it corresponds. |
 | | The level curves corresponding to heights of 10 and 30 are thick, whereas those corresponding to heights of 0 and 20 are not. |
| www.chass.utoronto.ca /~osborne/MathTutorial/SKE.HTM (1127 words) |
|