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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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Explore more practice questionsConsider the quadratic function f(x) = x² − 4.
Show all of your working. Sketches may be drawn freehand.
Part (a)
5 marksFind the roots of f(x) = 0.
Part (b)
10 marksSketch the graph of f(x), marking the roots and the vertex.
Part (c)
5 marksPhotograph or upload your handwritten working for the range of f(x).
Your answer · Part (a)
Suggested for this part: type — but you can Type, Sketch, Upload, use your Camera or send from your Phone.
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Maths Higher · Quadratics
Question 4 of 10 · resume where you left off
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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.
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Sketch y = x² − 4 and mark the roots.
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