AP®︎ Calculus BC: Topic 4.5 Practice Test
Prepare for your quiz, test, or the AP exam with focused practice questions on Topic 4.5 of AP Calculus BC – Solving Related Rates Problems.
Questions List
Topic 4.5
Question 1 Easy
An oil slick spreads in a circle on calm water. Its radius increases at 2 meters per minute. At what rate is the area of the slick changing when the radius is 12 meters?
What You’re Being Tested On:
Explore the learning objectives taken directly from the College Board’s AP® Calculus BC Curriculum. Ensure you’re prepared for the exact topics covered on the AP® exam, in-class tests, and quizzes, and gain confidence in your mastery of the material.

Topic 4.5: Solving Related Rates Problems
Learning Objective: CHA-3.E
Interpret related rates in applied contexts.
Essential Knowledge: CHA-3.E.1
The derivative can be used to solve related rates problems; that is, finding a rate at which one quantity is changing by relating it to other quantities whose rates of change are known.