Directed Numbers and the number plane

Question 0

If North is positive then South is

Answer 0

Negative

Question 1

What are directed numbers?

Answer 1

Numbers that have direction as well as size

Question 2

If east is positive then west is

Answer 2

Negative

Question 3

If above zero is positive then below zero is?

Answer 3

Negative

Question 4

If to the right is positive then to the left is?

Answer 4

Negative

Question 5

How would you write mount Everest’s height if it is 8000 metres above sea level?

Answer 5

+8000m or 8000m

Question 6

How can you write the dead seas height if it is 100m below sea level?

Answer 6

-100m

Question 7

How do you read -20?

Answer 7

Negative 20 or minus 20

Question 8

How do you read +20

Answer 8

Positive 20 or just 20

Question 9

How many numbers are used to describe a point on a number plane?

Answer 9

Two. They are called coordinates and are written in brackets

Question 10

What are the two axis on the number plane called?

Answer 10

The x axis (horizontal) and the y axis (vertical)

Question 11

A number pair or the coordinates of a point are shown like this (2,5) what do the numbers represent

Answer 11

The first number is the reading on the x axis ( how far right) the second number is the reading on the y axis ( how far up)

Question 12

What is (0,0) called?

Answer 12

The origin