Year 8

# Naming straight line graphs

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## Lesson details

### Key learning points

- In this lesson, we will be looking at plotting coordinates onto a grid and simple notation for labelling straight line graphs.

### Licence

This content is made available by Oak National Academy Limited and its partners and licensed under Oak’s terms & conditions (Collection 1), except where otherwise stated.

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### 5 Questions

Q1.

What is an integer?

A fraction

A special coordinate

The horizontal axis

Q2.

Complete the following sentence: On a horizontal line the..............

No ordinate stays the same

x-ordinate is always the same

Q3.

Which integer values can y be for the inequality shown above?

-2, -1, 0, 1, 2, 3

-3, -2, -1, 0, 1, 2, 3

-3, -2.5, -1,5, 0, 1, 1.5, 2

Q4.

Which of the following inequalities covers the following integer values of x? -1, 0, 1, 2, 3, 4?

-1 < x < 4

-2 < x < 4

Q5.

Which of the following coordinates satisfies the inequalities; -2 < x < 3 and -5 < y < 3?

(-2,-5)

(-3,3)

(3,2)

### 5 Questions

Q1.

John says, "In my line, all my y-ordinates are triple my x-ordinates". Tick the equation that represents John's line.

y = 4x

y = x - 3

y = x +3

Q2.

Jenny says, "In my line, all my y-ordinates are 5 less than my x-ordinates". Tick the equation that represents Jenny's line.

y = 5 - x

y = 5x

y = x + 5

Q3.

Which of the following lines does the point (2,6) lie on?

y = 2x

y = x - 4

y = x +3

Q4.

Which of the following lines does the point (3,-6) lie on?

y = 2x - 4

y = 3x

y = x + 8

Q5.

Which of the following coordinates lies on the line y=2x-1

(2,5)

(3,7)

(6,5)