Everything Maths Grade 10

Exercise 8 – 2:

1.You are given the following diagram:

 3  2  1 1 2

 4

 3

 2

 1

1

2

3

4

A(1;3)

B(2; 3)

x

y

Calculate the length of lineAB, correct to 2 decimal places.

2.You are given the following diagram:

 2  1 1 2

1

2

A(1; 1)

B(1; 2)

x

y

Calculate the length of lineAB, correct to 2 decimal places.

3.The following picture shows two points on the Cartesian plane,AandB.

 2  1 1 2

1

2

3

4

B(x;0,5)

A(1;3,5)

x

y

The distance between the points is 3,6056. Calculate the missing coordinate of pointB.

292 8.2. Distance between two points