
Trig functions were impossible. The video lessons made unit circle finally click. Went from D to B in six weeks.
Jordan Lee

The complete learning system to master Precalculus

Snap a photo of any problem and get the exact lesson

Certified teachers explain trig, vectors, matrices, and polar coordinates step-by-step

Thousands of practice questions with step-by-step solutions for every topic

Choose your Pennsylvania grade (K-12) and current math topics.

Upload homework problems or browse curriculum-aligned lessons.

Work through similar problems until concepts stick.

Track progress and watch grades improve week by week.

Practice with Keystone-style questions—be ready for Pennsylvania's graduation requirement

Learn from expert Pennsylvania teachers who know exactly what you need for Precalculus

Desktop, tablet, or phone—your Precalculus lessons sync across all devices
Taylor Chen
Riley Martinez
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Everything you need to know about mastering Precalculus with StudyPug
What does Precalculus coverage include?
Complete Precalculus curriculum with video lessons on trigonometry, vectors, matrices, complex numbers, and conic sections. Includes practice problems, step-by-step solutions, and progress tracking for every topic.
How does photo search work?
Take a photo of any precalculus problem, and StudyPug finds the exact lesson teaching that concept. It's like having a personal tutor who knows exactly what you need.
Are the teachers certified Pennsylvania educators?
Yes! Our teachers are certified Pennsylvania educators who understand precalculus curriculum and create lessons specifically for Pennsylvania standards and Keystone exam requirements.
Can I use StudyPug on my phone or tablet?
Absolutely! StudyPug works on desktop, tablet, and mobile. Your progress syncs automatically so you can study for precalculus anywhere, anytime.
How will StudyPug help me prepare for the Keystone Exam?
We include Keystone-style practice questions and teach the exact concepts tested on Pennsylvania's graduation exam. Students report significantly improved scores and confidence on test day.

10,000+ questions adjust to your exact skill level. Never run out of problems that challenge you.

See mastery percentage for every topic. Parents get weekly progress emails automatically.

Earn badges for consistency and improvement. Build learning streaks that motivate daily practice

Time spent, problems solved, concepts mastered. Identify exactly where more practice is needed.