Chapter 3.7

Mean value theorem


What You'll Learn

Verify that a function satisfies the continuity and differentiability requirements for the Mean Value Theorem
Apply the Mean Value Theorem to find points where the tangent slope equals the secant slope
Use the equation f'(c) = [f(b) - f(a)] / (b - a) to solve for values of c in a given interval
Interpret the Mean Value Theorem graphically by identifying parallel tangent and secant lines
Apply the Mean Value Theorem to solve optimization problems involving derivative constraints

What You'll Practice

1

Verifying continuity and differentiability of polynomial functions on closed and open intervals

2

Calculating secant line slopes between endpoints and solving for c using derivatives

3

Finding all numbers in an interval that satisfy the Mean Value Theorem conclusion

4

Determining minimum or maximum function values using derivative inequalities and the Mean Value Theorem

Why This Matters

The Mean Value Theorem is a foundational result in calculus that connects average rates of change to instantaneous rates. You'll use it throughout calculus to prove important theorems, solve optimization problems, and understand the relationship between derivatives and function behavioressential for physics, engineering, and economics applications.

This Unit Includes

3 Video lessons
Practice exercises
Learning resources

Skills

Mean Value Theorem
Derivatives
Continuity
Differentiability
Secant Lines
Tangent Lines
Polynomial Functions
Inequalities
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