- 34-page printable PDF
- 182 terms with examples
- 42 practice questions, answers explained
- 2-page cram sheet and study plans
CLEP Precalculus Study Guide
Everything the CLEP Precalculus exam tests, in one PDF you can print. Built from the College Board's official outline, heaviest topics first.
- 182 key terms, each with an example
- 42 practice questions with every answer explained
- A 2-page cram sheet for the night before
- 2-, 4- and 8-week study plans built from the exam weights
Last updated 2026 · exam details checked against the College Board's published exam information in 2026
What you get for $5
One chapter for each official content area, in the order the exam weighs them.
- 📘34pages, printable
- 🧭6chapters, heaviest first
- 🔑182terms with examples
- ✍️42practice questions, answers explained
- ⚠️18exam traps to avoid
- 📄2page cram sheet
Try 10 free Precalculus questions
In the style of the real exam, from all 6 areas. About 20 minutes, with every answer explained and a score by area.
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Question 1 · Representations of Functions: Symbolic, Graphical, and Tabular
The point (1, 4) lies on the graph of y = f(x). Which point must lie on the graph of y = f(x − 3) + 2?
Show the answer
Answer: A. (4, 6). Replacing x with x − 3 moves the graph right 3, so x goes from 1 to 4. The + 2 outside moves it up 2, so y goes from 4 to 6.
The trap: (−2, 6) is tempting because x − 3 looks like subtracting 3 from the x-value. Inside changes act opposite: x − 3 shifts right.
Replacing x with x − 3 moves the graph right 3, so x goes from 1 to 4. The + 2 outside moves it up 2, so y goes from 4 to 6.
The trap: (−2, 6) is tempting because x − 3 looks like subtracting 3 from the x-value. Inside changes act opposite: x − 3 shifts right.
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Question 2 · Algebraic Expressions, Equations, and Inequalities
For which positive value of k does x² + kx + 9 = 0 have exactly one real solution?
Show the answer
Answer: C. 6. One repeated real root needs a discriminant of 0: k² − 4(1)(9) = 0, so k² = 36 and k = 6 (the positive value).
The trap: The choice 36 is k², the value you get just before taking the square root. The equation asks for k itself.
One repeated real root needs a discriminant of 0: k² − 4(1)(9) = 0, so k² = 36 and k = 6 (the positive value).
The trap: The choice 36 is k², the value you get just before taking the square root. The equation asks for k itself.
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Question 3 · Functions: Concept, Properties, and Operations
What is the domain of g(x) = ln(4 − x)/(x + 2)?
Show the answer
Answer: B. (−∞, −2) ∪ (−2, 4). The logarithm needs 4 − x > 0, so x < 4. The denominator needs x ≠ −2. Together the domain is all x < 4 except −2.
The trap: The interval (−∞, 4) respects the logarithm but forgets that x = −2 makes the denominator zero.
The logarithm needs 4 − x > 0, so x < 4. The denominator needs x ≠ −2. Together the domain is all x < 4 except −2.
The trap: The interval (−∞, 4) respects the logarithm but forgets that x = −2 makes the denominator zero.
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Question 4 · Trigonometry and its Applications
What is the exact value of cos(7π/6)?
Show the answer
Answer: E. −√3/2. 7π/6 is 210°, in quadrant III, with reference angle π/6. Cosine there is negative, and cos π/6 = √3/2, so the value is −√3/2.
The trap: −1/2 uses the right sign but swaps the special values: cos π/6 is √3/2, while 1/2 is cos π/3.
7π/6 is 210°, in quadrant III, with reference angle π/6. Cosine there is negative, and cos π/6 = √3/2, so the value is −√3/2.
The trap: −1/2 uses the right sign but swaps the special values: cos π/6 is √3/2, while 1/2 is cos π/3.
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Question 5 · Analytic Geometry
The circle x² + y² − 8x + 6y + 9 = 0 has which center and radius?
Show the answer
Answer: D. Center (4, −3), radius 4. Complete the squares: (x − 4)² + (y + 3)² = −9 + 16 + 9 = 16. The center is (4, −3) and the radius is √16 = 4.
The trap: Radius 5 comes from adding 16 and 9 but forgetting to move the constant 9 to the other side. Radius 16 forgets the square root.
Complete the squares: (x − 4)² + (y + 3)² = −9 + 16 + 9 = 16. The center is (4, −3) and the radius is √16 = 4.
The trap: Radius 5 comes from adding 16 and 9 but forgetting to move the constant 9 to the other side. Radius 16 forgets the square root.
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Question 6 · Functions as Models
A company's cost is C = 12x + 900 dollars and its revenue is R = 30x dollars for x units. How many units are needed to break even?
Show the answer
Answer: A. 50. Break even when C = R: 12x + 900 = 30x, so 900 = 18x and x = 50 units.
The trap: The value 75 comes from dividing 900 by the cost per unit, 12. Revenue must be subtracted first: 30 − 12 = 18 dollars of profit per unit.
Break even when C = R: 12x + 900 = 30x, so 900 = 18x and x = 50 units.
The trap: The value 75 comes from dividing 900 by the cost per unit, 12. Revenue must be subtracted first: 30 − 12 = 18 dollars of profit per unit.
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Question 7 · Representations of Functions: Symbolic, Graphical, and Tabular
A function f has the table below. x: 0, 1, 2, 3; f(x): 3, 6, 12, 24. If the pattern continues, what is f(5)?
Show the answer
Answer: B. 96. The outputs double each time, so f(x) = 3·2ˣ. Then f(5) = 3·32 = 96.
The trap: 48 is f(4), one step short. The table is exponential with ratio 2; 48 comes from stopping a step early.
The outputs double each time, so f(x) = 3·2ˣ. Then f(5) = 3·32 = 96.
The trap: 48 is f(4), one step short. The table is exponential with ratio 2; 48 comes from stopping a step early.
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Question 8 · Algebraic Expressions, Equations, and Inequalities
Which set is the solution of |2x − 3| ≥ 7?
Show the answer
Answer: C. x ≤ −2 or x ≥ 5. Greater-than-or-equal splits into two outside cases: 2x − 3 ≥ 7 gives x ≥ 5, and 2x − 3 ≤ −7 gives x ≤ −2.
The trap: The between-interval −2 ≤ x ≤ 5 uses the right endpoints but the wrong shape. A 'greater than' absolute value inequality is satisfied outside them.
Greater-than-or-equal splits into two outside cases: 2x − 3 ≥ 7 gives x ≥ 5, and 2x − 3 ≤ −7 gives x ≤ −2.
The trap: The between-interval −2 ≤ x ≤ 5 uses the right endpoints but the wrong shape. A 'greater than' absolute value inequality is satisfied outside them.
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Question 9 · Functions: Concept, Properties, and Operations
Let f(x) = 3x − 1 and g(x) = x² + 2. What is g(f(2))?
Show the answer
Answer: E. 27. Work inside out: f(2) = 3(2) − 1 = 5, then g(5) = 25 + 2 = 27.
The trap: The choice 17 is f(g(2)), the composition in the opposite order. Here f is applied first.
Work inside out: f(2) = 3(2) − 1 = 5, then g(5) = 25 + 2 = 27.
The trap: The choice 17 is f(g(2)), the composition in the opposite order. Here f is applied first.
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Question 10 · Trigonometry and its Applications
A circle has radius 12 cm. What is the length of the arc cut off by a central angle of 150°?
Show the answer
Answer: D. 10π cm. Convert: 150° = 5π/6 radians. Then s = rθ = 12·5π/6 = 10π cm.
The trap: 1800 comes from multiplying 12 by 150 directly. The formula s = rθ requires radians, so the degrees must be converted first.
Convert: 150° = 5π/6 radians. Then s = rθ = 12·5π/6 = 10π cm.
The trap: 1800 comes from multiplying 12 by 150 directly. The formula s = rθ requires radians, so the degrees must be converted first.
The CLEP Precalculus exam at a glance
The CLEP Precalculus exam is a computer-based test from the College Board. The exam has approximately 48 questions in two sections, to be answered in approximately 90 minutes. A score of 50 on the 20–80 scale earns an ACE credit recommendation of 3 semester hours, though each college sets its own policy. The exam covers 6 content areas; the heaviest is Representations of Functions: Symbolic, Graphical, and Tabular at 30%.
- Questions
- About 48mostly multiple choice
- Time
- 90 minseparately timed sections
- Passing score
- 50on a 20–80 scale
- ACE credit
- 3semester hours
- Exam fee
- $97paid to College Board
- Calculator
- Section 1 onlyon-screen graphing calculator
Source: official CLEP Precalculus exam page.
What the exam covers
6 areas, heaviest first. The guide's chapters follow this order.
- Representations of Functions: Symbolic, Graphical, and Tabular30%
- Algebraic Expressions, Equations, and Inequalities20%
- Functions: Concept, Properties, and Operations15%
- Trigonometry and its Applications15%
- Analytic Geometry10%
- Functions as Models10%
How it works
- 1Buy once, $5Secure checkout. No subscription needed.
- 2Download the PDFFrom your TransferCredit.org account, right away and any time later.
- 3Study the heaviest areas firstFollow the 2-, 4- or 8-week plan, then read the cram sheet the night before.
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