1. Find the gradients of the following lines:

 

(a)

(b)

(c)

(d)

 

2. Make y the subject of the following equations and then find:

(i) The gradient
(ii) The y-intercept

(a) x + 2y = 7 
(b) 6x − 2y = 9
(c)  
(d) 3(x − 2y) = 12

(e) 

3. Sketch the graphs of the straight lines with the following gradients and intercepts and give the equation of each:

(a) Gradient = 3, y-intercept = 2

(b) Gradient = -0.5, y-intercept = 1

(c) x-intercept = 1, y-intercept = 2.5

(d) Gradient = 0, y-intercept = -3

4. Sketch the graphs of each of the following lines on separate axes:

(a) y = 2x − 5

(b) 3y + 2x = 12

(c) x = -1.5

(d) 2 + 3y = 6x

(e) 

(f) y = 2(3 − x)

(g) 

5. Give the equations of the following linear functions:

(a) (b)

(c) (d)