Advanced Placement (AP) · Mathematics
5.4 The first derivative test
Why it matters
At a critical point, watch how the slope changes sign: from up to down is a peak; from down to up is a valley.
Advanced20m readingPrerequisite: 5.3 Increasing and decreasing intervals
🔒
This feature is available in the All-Access Plan.
Upgrade to unlock the full lesson, examples, quiz and practice.
Upgrade Plan