Practice with real exam questions
Access thousands of exam-style questions from major exam boards. Get instant marking with detailed feedback on how to improve.
Find the range of values of that satisfy the inequality .
The diagram shows a horizontal bridge of 100 metres supported by 2 pillars at the side, with a cable being suspended from point A and B. Each pillar is vertical and is 40 metres tall. The lowest point C of the cable is 10 meters above the bridge. The origin, O, is vertically below point A, where the foot of the pillar meets the bridge. A quadratic function can be used to model the cable. Find the quadratic equation.
Exam-ready preparation
The most realistic exam practice available, with feedback that helps you improve.
Real Questions
Questions inspired from actual exam board papers, vetted by expert teachers.
Instant Marking
Get your answers marked immediately with detailed feedback from your tutor.
Accurate Mark Scheme
Understand exactly what examiners are looking for.
Full-length questions from every paper type
Practice with questions from paper 1, 2 and 3. Filter by topic, exam board and difficulty.
Multiple choice questions
Practice with multiple choice questions
Structured questions
Practice with structured questions
Essay questions
Upload full essays and have it graded on rubrics
Feedback that actually helps
Our tutors don't just mark your answer - it explains where you went wrong, what you missed, and how to get full marks next time.
Mark scheme breakdown
See exactly which marking points you hit or missed
Model answers
Compare your answer to a full-marks example
Improvement tips
Specific advice on how to improve your technique
Ready to jump a few grades?
Join thousands of students who've already seen improvements in their learning with Pallo.