Is AP Precalculus practice on Mistake Master free?

Yes. Every lesson, diagnostic, drill, cumulative exam, and animation is free, and no account is required. Progress saves in the browser using local storage.

How much AP Precalculus practice is available?

All 58 topics are covered. Each topic has a ten-scenario skill check, a ten-item diagnostic, and per-misconception drills. Each of the four units has a twenty-item cumulative exam.

Where should I start with AP Precalculus practice?

If a unit test is coming up, take that unit's cumulative exam cold as a baseline. Otherwise run topic diagnostics for material you have covered and let the results route you to drills.

Does Mistake Master cover AP Precalculus Unit 4?

Yes, in full. Unit 4 is not assessed on the AP exam, so its drills stay out of exam-weighted practice, but it has the same lessons, diagnostics, animations, and cumulative exam as the other units.

Is this aligned to the College Board AP Precalculus framework?

Yes. Topics, unit weightings, and exam structure follow the published AP Precalculus Course and Exam Description, and every item carries an internal misconception code from a fixed taxonomy.

AP Precalculus Diagnostic

Short topic-level assessments built around documented student misconceptions. Each diagnostic is ten items keyed to a specific wrong way of thinking; miss one and the result routes you straight to the drill that fixes it. This page covers all four units and every one of the 58 topics in the course framework. Pick a topic to start.

Unit 1

Polynomial and Rational Functions

1.1 Change in Tandem Start → 1.2 Rates of Change Start → 1.3 Rates of Change in Linear and Quadratic Functions Start → 1.4 Polynomial Functions and Rates of Change Start → 1.5 Polynomial Functions and Complex Zeros Start → 1.6 Polynomial Functions and End Behavior Start → 1.7 Rational Functions and End Behavior Start → 1.8 Rational Functions and Zeros Start → 1.9 Rational Functions and Vertical Asymptotes Start → 1.10 Rational Functions and Holes Start → 1.11 Equivalent Representations of Polynomial and Rational Expressions Start → 1.12 Transformations of Functions Start → 1.13 Function Model Selection and Assumption Articulation Start → 1.14 Function Model Construction and Application Start →

Unit 2

Exponential and Logarithmic Functions

2.1 Change in Arithmetic and Geometric Sequences Start → 2.2 Change in Linear and Exponential Functions Start → 2.3 Exponential Functions Start → 2.4 Exponential Function Manipulation Start → 2.5 Exponential Function Context and Data Modeling Start → 2.6 Competing Function Model Validation Start → 2.7 Composition of Functions Start → 2.8 Inverse Functions Start → 2.9 Logarithmic Expressions Start → 2.10 Inverses of Exponential Functions Start → 2.11 Logarithmic Functions Start → 2.12 Logarithmic Function Manipulation Start → 2.13 Exponential and Logarithmic Equations and Inequalities Start → 2.14 Logarithmic Function Context and Data Modeling Start → 2.15 Semi-log Plots Start →

Unit 3

Trigonometric and Polar Functions

3.1 Periodic Phenomena Start → 3.2 Sine, Cosine, and Tangent Start → 3.3 Sine and Cosine Function Values Start → 3.4 Sine and Cosine Function Graphs Start → 3.5 Sinusoidal Functions Start → 3.6 Sinusoidal Function Transformations Start → 3.7 Sinusoidal Function Context and Data Modeling Start → 3.8 The Tangent Function Start → 3.9 Inverse Trigonometric Functions Start → 3.10 Trigonometric Equations and Inequalities Start → 3.11 The Secant, Cosecant, and Cotangent Functions Start → 3.12 Equivalent Representations of Trigonometric Functions Start → 3.13 Trigonometry and Polar Coordinates Start → 3.14 Polar Function Graphs Start → 3.15 Rates of Change in Polar Functions Start →

Unit 4

Functions Involving Parameters, Vectors, and Matrices

4.1 Parametric Functions Start → 4.2 Parametric Functions Modeling Planar Motion Start → 4.3 Parametric Functions and Rates of Change Start → 4.4 Parametrically Defined Circles and Lines Start → 4.5 Implicitly Defined Functions Start → 4.6 Conic Sections Start → 4.7 Parametrization of Implicitly Defined Functions Start → 4.8 Vectors Start → 4.9 Vector-Valued Functions Start → 4.10 Matrices Start → 4.11 The Inverse and Determinant of a Matrix Start → 4.12 Linear Transformations and Matrices Start → 4.13 Matrices as Functions Start → 4.14 Matrices Modeling Contexts Start →

A diagnostic names the misconception, not just the wrong answer. Every distractor is a documented way students think about the topic, so a miss tells you which idea to repair rather than only that a question went wrong. Nothing here needs an account, and results save on this device.