AP Precalculus Study Guide: What's Inside and Who It's For

The AP Precalculus study guide is a $5 printable PDF built for students who want focused review without buying a full course first. It is 32 pages, covers one chapter per official unit, and starts with the heaviest-weighted content so your time goes where the exam puts the most points.

Inside, you get 182 key terms with examples, 40 practice questions with every answer explained, common exam traps, a 2-page cram sheet, and 2-, 4-, and 8-week study plans built from the official weights. You can also try 10 free sample questions on the guide page before you buy. If you are deciding between the guide, the $19 course, or an AP plan, this post shows where each one fits.

What is inside the $5 guide

The guide is a 32-page printable PDF and costs $5 once. It is made for quick review, not for long video-style teaching. That matters if you already took the class and now need a simple way to sort what to study first.

The table above shows the parts, but the useful part is how they work together. The chapter order follows the official units, heaviest first, so you start where the exam puts the most weight. That means Polynomial and Rational Functions comes before the others, because it carries 30%–40% of the exam. Exponential and Logarithmic Functions also matters a lot at 25%–40%. Trigonometric and Polar Functions still takes a large share, 30%–35%, so it is not an afterthought.

The 182 key terms are not just a word bank. Each one comes with an example, which helps when you know the name of an idea but freeze when you have to use it. The 40 practice questions do the same job in a different way. Every answer is explained, so you can see why a step works instead of only checking right or wrong.

You also get common exam traps flagged in the guide. That is useful on AP Precalculus because the test splits work across calculator and no-calculator parts. The guide closes with a 2-page cram sheet for the night before and 2-, 4-, and 8-week plans if you need help pacing your review.

If you want to preview the style before buying, the $5 study guide includes 10 free sample questions.

Why the guide follows the exam weights

AP Precalculus is not a four-unit course on this exam. The official outline weights only three units on the test, and the guide is built from those official units and weights. That is why the chapter order matters.

Read the table as a time guide, not just a fact list. Polynomial and Rational Functions carries 30%–40%, so it deserves a large share of your review time. Exponential and Logarithmic Functions carries 25%–40%, which can also be a very large slice. Trigonometric and Polar Functions carries 30%–35%, so it still needs steady work. The ranges overlap, but the message is simple: all three units matter, and two of them can take up close to two fifths of the exam.

The exam format also explains why the guide mixes short review with worked questions. Multiple choice counts for more than half of the score, split into 29 no-calculator questions worth 43.75% and 13 graphing-calculator questions worth 18.75%. Free response is split into 2 graphing-calculator tasks worth 18.75% and 2 no-calculator tasks worth 18.75%.

That split changes how you should study. You need quick recall for the no-calculator multiple-choice part, but you also need clean written work for free response. The guide's key terms, examples, and explained practice questions help with both. If you want a rough sense of where your raw points place you on the 1 to 5 scale, the free AP score calculator gives an estimate, not an official conversion.

How each part helps on test day

The most useful part of this AP Precalculus study guide may be how each feature solves a different problem students hit late in the year.

Start with the key terms. There are 182 of them, and each includes an example. This is good for students who remember seeing a concept in class but cannot quickly connect it to a graph, equation, or function behavior. The example turns a definition into something you can use.

Next are the 40 practice questions with full explanations. These are better than an answer key alone because AP-style mistakes are often small. You may set up a function correctly, then miss a restriction, choose the wrong representation, or mix up what the prompt is asking. The written explanations show where that happened.

The exam traps section matters for the same reason. AP Precalculus rewards accurate reading, not just memorized steps. Trap notes can help you notice common misses before they happen, especially when switching between calculator and no-calculator work.

Then there is the 2-page cram sheet. This is the part you use when your notes are messy and you need one short review source the night before. It is not a replacement for real study, but it is useful for last checks.

The study plans bring the whole guide together. You get 2-, 4-, and 8-week options built from the exam weights, so the plan already matches where the test puts its points.

If you want extra questions before you buy, try the free practice test. It has 25 original questions with explanations and follows the official units and weights.

Who should buy only the guide, and who should add more

The guide alone fits a specific kind of student. Buy only the guide if you already have class notes, know most of the course, and mainly need organized review. It is also a good fit if your budget is tight and you want the lowest-cost paid option first. At $5, it is easy to try, and the 10 free sample questions on the $5 study guide let you check the style before paying.

Add the course if you need more than review. The $19 prep course has 12 chapters, 69 lessons, 71 quizzes, and 22 interactive labs. It also includes a timed final practice exam and a final exam, each with a written part and a scoring guide. It is built for the May 2027 exam. If you learn best by moving lesson by lesson and checking yourself often, the course gives you more structure than the guide.

Buying both is still a simple choice for one subject. The guide plus the course is $24 total, paid once. That gives you a quick printable review tool and a larger practice set with more guided work.

A plan makes sense only if you need more than AP Precalculus. AP Monthly is $29 a month and AP Lifetime is $149 once, and both include all 42 AP study guides and 36 AP prep courses. If you want prep across AP, CLEP, and DSST, the All-Access Bundle includes every CLEP and DSST prep course, 36 AP prep courses and every AP, CLEP and DSST study guide, for life. You can compare options on the AP prep hub page.

What to buy based on your timeline and budget

If the exam is close and you need a fast reset, start with the AP Precalculus study guide. The 2-page cram sheet, chapter order, and short study plans are built for that kind of review. Since AP exams are given once a year in the first two weeks of May, late spring prep often comes down to using limited time well.

If you have a few weeks and know you need more teaching, get the course. Its lesson and quiz setup is better for students who still have gaps in core topics and need repeated checks. The timed final practice exam also helps if pacing is part of the problem.

If you are preparing for several AP subjects, a plan may cost less than buying many guides and courses one by one. AP Monthly costs $29 a month and AP Lifetime costs $149 once. Those plans include all 42 AP study guides and 36 AP prep courses. Single guides and single courses are not plans.

If you are looking at college credit, keep one thing clear: AP scores run from 1 to 5, but each college sets its own AP credit policy, including the score it needs and the credit it gives. You should check your college's policy before you decide how much prep to buy. The exam fee is separate from prep materials and costs $99 in the U.S., U.S. territories and Canada, or $129 outside the U.S.

For one subject, the simple math is $5 for the guide, $19 for the course, or $24 for both. If you need several AP subjects, AP Monthly at $29 a month or AP Lifetime at $149 once includes all 42 AP study guides and 36 AP prep courses.

Frequently Asked Questions about AP Precalculus

Final Thoughts on AP Precalculus

If you want the lowest-cost paid option and mostly need organized review, start with the $5 study guide. If you need lessons, quizzes, labs, and a timed final practice exam, add the $19 prep course. For most students, that choice comes down to one question: do you need review, or do you need teaching plus review. Read the sample questions on the guide, check the course outline, and pick the one that matches how much help you need right now.