Last updated on Sep 20, 2026

The Basics (Junior Cert Mathematics): Flashcards

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Revision Notes Model Answers Quizzes Flashcards Exam Questions

Graphing/Sketching Lines

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What is the $x$ -intercept?

Point where line crosses $x$ -axis

Value of $y$ at the $x$ -intercept

$y = 0$

What is the $y$ -intercept?

Point where line crosses $y$ -axis

Value of $x$ at the $y$ -intercept

$x = 0$

How to find $y$ -intercept

Substitute $x = 0$ into equation

How to find $x$ -intercept

Substitute $y = 0$ into equation

Which axis is horizontal?

$x$ -axis

Which axis is vertical?

$y$ -axis

How many points needed to draw a line?

Two points

Tool to use when drawing a line

Ruler

First step to graph a line

Find $y$ -intercept (set $x = 0$ )

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The Basics

The Basics

Parallel/Perpendicular Lines

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The Basics

The Basics

Parallel/Perpendicular Lines

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The Basics

The Basics

Parallel/Perpendicular Lines

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The Basics

The Basics

Parallel/Perpendicular Lines

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