Quadratic models
Maximum at t = 3
Your peak,
our focus.
Prepare for the SAT, IB exams, AP exams, and much more. After each full-length practice test, Summit AI breaks down your results, shows what to work on next, and saves matching lessons to Suggested.
What’s inside Zenith
Full-length exams, lessons, answer review, and an AI study companion. See how they fit together.
Sit the whole test.
Work through a complete practice exam with section timing, saved answers, and a review when you finish. On the SAT, how you do in your first module shapes the difficulty of your second.
Find your examSAT · Full-length practice Section timers
Digital SAT
Reading & Writing54 questions · 64 minutes
Math44 questions · 70 minutes
Module 1Module 2 adapts
Both sections adapt between modules. Original Zenith questions.
Find the right format for your exam.
See which exams have full-length simulations and which sections have practice sets and lessons.
Try a question.
Loading practice question…
Desmos shortcuts for a list of numbers.
Type the function, then enter the values inside parentheses, separated by commas.
mean(12, 17, 19, 24, 27, 31, 34, 40)= 25.5Find your exam.
Look up an exam to see its subjects and available practice.
Practice builds the skills used by these exams. Shared foundations can appear in related collections. AP subjects and IB levels have separate workspaces.
Study through test day.
Free includes short practice sets and worked explanations. Pro adds longer sets, available full-length tests, and Summit AI. Pay once for one exam through the date you choose.
Questions about Zenith
Can I try it without an account?
Yes. Answer the sample above, check the explanation, and try a different exam from the menu.
Are these official exam questions?
No. Zenith writes its own questions and explanations. Some math exercises use the same setup with different numbers. Practice results are not official exam scores.
Do all exams adapt like the SAT?
No. Zenith’s full-length SAT tests adapt between modules. Other exams use their own sections and timing.
Can I report a question or suggest a topic?
Yes. Use Report a question in practice review, or Suggest a topic in Learn search. You can also reach us through Contact.
- zenith
- /ˈziː.nɪθ/noun
- Meaning
- The highest point reached; a peak.
- The point in the sky directly overhead.