3.Calculate the gradient (m) of lineABin the following diagram:
3 2 1 1 2
2
1
1
2
3
4
A(2;R,8)
B(1; 3)
x
y
4.If the gradient ofCD=^23 , findpgiven:
a) C(16; 2)andD(8;p). b)C(3; 2p)andD(9; 14).
5.In the following diagram lineABhas a gradient (m) of 2. Calculate the missing co-ordinate of pointB.
2 1 1 2
1
2
3
4
5
A(1; 0)
B(1;y)
x
y
6.You are given the following diagram:
2 1 1 2 3 4
4
3
2
1
1
2
3
4
A(1; 3)
B(x;3)
x
y
Chapter 8. Analytical geometry 297