Anisocline(for constantk) is the line alongwhichthe solutioncurveshavethe samegradient(k). By calcu-
latingthis gradientfor eachisocline,the slopefield can be visualized;makingit relativelyeasyto sketch
approxi-matesolutioncurves.For example,. The isoclinesare.
Example 1 Consider. We brieflysketchthe slopefield as above.
The solutionsare.