Last updated: October 22, 2026 · Written by the Math Made Easy math teachers

This 45-minute test follows the AP Calculus AB style: two multiple-choice items and free-response questions with units and justification. Show every step. The total is 20 points, and no calculator is needed.
Standards: AP Calculus AB Unit 6 · Level: Grade 12 AP Calculus AB
Question 2 Accumulation derivative (2 points)
Let H(x) = ∫0x √(t4 + 9) dt. What is H′(2)?
- 5
- 25
- 3
- 1/5
Question 3 Riemann sums from a table (3 points)
The rate r(t) at which a machine fills a tank, in gallons per minute, is given by the table.
| t (min) | 0 | 3 | 5 | 9 |
|---|---|---|---|---|
| r(t) | 8 | 10 | 7 | 2 |
- Find the left Riemann sum for ∫09 r(t) dt using the three subintervals. (1 point)
- Find the right Riemann sum using the same subintervals. (1 point)
- Find the trapezoidal sum and give the units. (1 point)
Question 4 Substitution (3 points)
Let f(x) = x2(x3 + 2)4.
- Find ∫ f(x) dx. (2 points)
- Evaluate ∫01 f(x) dx. (1 point)
Question 5 Accumulation function from a graph (3 points)
The graph of f consists of line segments. Let g(x) = ∫0x f(t) dt.
- Find g(2) and g(4). (1 point)
- Find g(6). (1 point)
- Find the absolute maximum value of g on [0, 6] and justify. (1 point)
Question 6 Long division and completing the square (3 points)
Find each antiderivative.
- ∫ x2 − 3x + 5x − 1 dx (2 points)
- ∫ 1x2 + 4x + 5 dx (1 point)
Question 7 Properties of integrals (2 points)
For a function f, ∫14 f(x) dx = 7 and ∫16 f(x) dx = −2.
- Find ∫46 f(x) dx. (1 point)
- Find ∫41 (2f(x) + 3) dx. (1 point)
Question 8 Net change in a tank (2 points)
Water enters a tank at rate R(t) = 12 − 2t gallons per minute for 0 ≤ t ≤ 10 (a negative value means water is leaving). The tank holds 40 gallons at t = 0.
- How many gallons are in the tank at t = 6? (1 point)
- At what time on [0, 10] is the amount of water greatest? Justify. (1 point)
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