Yr 8 Unit 4 Week 1 - Lesson 4

Yr 8 Unit 4 Week 1 - Lesson 4

Explain how an inequality such as x > 4 would be shown on a graph

What is the difference in the answers for x = 2 and x > 2

1. They both have the same answer x = 2
2. One answer has a single value and the other answer has an infinite number of values
3. They both have an infinite number of values for the answer
4. There is no difference in their answers.

Given the inequality 2 < x < 6 which of the following coordinates lie inside it if shown on a graph.

1. (2, 6)
2. (6, 4)
3. (3, 5)
4. (4, 7)

Given the inequality 2 ≤ x < 6 which of the following coordinates lie inside it if shown on a graph.

1. (2, 6)
2. (6, 4)
3. (1, 5)
4. (5, 7)

Given the inequality 2 ≤ x ≤ 6 which of the following coordinates lie inside it if shown on a graph.

1. (2, 6)
2. (6, 4)
3. (1, 5)
4. (5, 7)

DO NOW

TITLE - Unit 4 Week 1 - Lesson 4 - DO NOW

INSTRUCTIONS - Write down the questions in your exercise book and answer them.

QUESTIONS - Do the questions on the left hand side.

Select the coordinates below that describe a lattice point.

1. (-1, 3)
2. (2.5, 6)
3. (3, 4.1)
4. (-3.5, 7.6)

KEY POINT - REMEMBER

A lattice point has coordinates which are INTEGER values i.e.

• (1, 2)
• (-4, 7)
• (5, -3)
• (-8, -7)

(2, 1)

(4, 4)

(-3, 2)

(-1, -2)

(3, -3)

 Drag and drop each point onto   the correct coordinate pair.

NON lattice point

Lattice point

 Drag and drop each point onto   the correct description.

NEW LEARNING

TITLE - Unit 4 Week 1 - Lesson 4 - NEW LEARNING

INSTRUCTIONS - Write down the following notes in your exercise book.

WHITEBOARD

Explain what we have just covered in the New Learning. You may refer to your notes.

1. 0 ≤ x < 3 -1 ≤ y < 4
2. 0 ≤ x ≤ 3 -1 ≤ y < 4
3. 0 ≤ x ≤ 3 -1 ≤ y ≤ 4
4. 0 ≤ x ≤ 3 -1 ≤ y < 4

1. 2
2. 3
3. 4
4. 5

1. 8
2. 24
3. 12
4. 16

1. 1 < x < 4 0 < y < 4
2. 2 ≤ x ≤ 3 1 ≤ y ≤ 3
3. 1 < x < 4 1 ≤ y ≤ 3
4. 2 ≤ x ≤ 3 0 < y < 4

1. 8
2. 12
3. 14
4. 20

1. 8
2. 12
3. 14
4. 16

INDEPENDENT STUDY

TITLE - Unit 4 Week 1 - Lesson 4 - NEW LEARNING

INSTRUCTIONS - Write down the questions in your book and then answer. Show all of your working out.

QUESTIONS - 1 to 3