1. Where m and c are whole numbers.
Linear Graphs
A graph of any equation illustrates the co-ordinate points which satisfy the rule defined by the equation itself.
Linear graphs will always be straight lines.
They will usually have the form:
y = mx + c
Where m and c are whole numbers.

2. Complete the table and then draw the graph on suitable pair of axes.
1. y = 2x + 3
Rule:
Multiply the x-value by 2 and add 3 to find the y-value X
– 2 2 4 Y
- 1 3 7 11

3. 11 10 9 8 7 6 5 4 3 2 1
- 1 x y X
– 2 2 4 Y
- 1  3 7 
 11

4. Multiply the x-value by 3 and take 2 to find the y-value
2. y = 3x – 2
Rule:
Multiply the x-value by 3 and take 2 to find the y-value X
– 1 1 2 Y 1 4
- 5
- 2

5. 4 3 2 1 -1 -2 -3 -4 -5 y x X
– 1 1 2 Y
- 5
 - 2  4