Everything Maths Grade 10

 4  3  2  1 1 2 3 4

 5

 4

 3

 2

 1

1

2

3

A(3; 2)

B(x;4)

x

y

The distance between the points is 8,4853. Calculate the missing coordinate of pointB.

7.You are given the following diagram:

 2  1 1 2 3

 4

 3

 2

 1

1

2

3

A(1;3,5)

B(2;2,5)

x

y

Calculate the gradient (m) of lineAB. The coordinates areA(1;3,5)andB(2;2,5)respectively.

8.You are given the following diagram:

 3  2  1 1 2 3 4 5

1

2

3

4

A(2;0,5)

B(x;3,5)

x

y

You are also told that lineABhas a gradient,m, of 0,5. Calculate the missing co-ordinate of pointB.

Chapter 8. Analytical geometry 317