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Practice · Maths Higher
Q3 / 10Sketch y = x² − 4 and mark the roots and the vertex. (10 marks)
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Exam-style question written by UniDoodle — not reproduced from an official paper.
Part (a)
5 marksSolve 3x − 7 = 11.
Part (b)
10 marksSolve the simultaneous equations 2x + y = 11 and x − y = 1.
Your answer · Part (a)
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Practice · Maths Higher
Q3 / 10Sketch y = x² − 4 and mark the roots and the vertex. (10 marks)
Product preview · Sample data
Inside UniDoodle
What the product actually looks like
Practice Library, presenter marking and Live Sessions — shown with clearly labelled sample data.
Practice Library
Exam
Leaving Cert
Level
Higher
Subject
Maths
Topic
Quadratics
Year
2019–2024
2024 · Paper 1 · Q3(b)
Solve the quadratic and interpret the roots.
2023 · Paper 1 · Q5(a)
Sketch the curve and state the turning point.
2022 · Paper 2 · Q7
Use the discriminant to justify your answer.
2021 · Paper 1 · Q2(c)
Complete the square and explain each step.
Product preview · Sample data
Marking · Quadratics revision
3 of 24Student answer · A. Byrne
Typed working
x² − 4 = 0 → (x−2)(x+2) = 0 → x = 2, x = −2
Sketch attached
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Our story
Small but mighty, with big ambitions
UniDoodle is the brainchild of Dr Seamus McLoone, an electronic engineering lecturer at Maynooth University in Ireland. Frustrated by the limitations of traditional clicker systems, he created UniDoodle so students could take a more active role in the classroom.
- Debuted in 2015 as the world's first native mobile classroom response system
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UCD Graduate
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