Skill: limits
Hole Explorer
Squeeze x toward the hole in (x² − k²)/(x − k) and watch the function values close in on the limit from both sides.
1 Hole Explorer
Squeeze x toward the hole in (x² − k²)/(x − k) and watch the function values close in on the limit from both sides.
Controls
f(x) = (x² − k²)/(x − k) has a hole at x = k. Drag k and watch the approach table squeeze toward the limit.
2 Keep going
Read the lesson, drill practice, or use the calculator.