13 The graph of v = pm + q is shown below. 8 6 4 2
-4
-2
2
4
m
-2 -4 -6 -8
v
Find the value of: (a) p Answer ______________________ (b) q Answer ______________________
10
Maths Revision Booklet N4
14 Look at the grid below. y = 2x – 2 y 4
R
2 0 1
2
3
4
x
-2
(a) List the three inequalities that define the shaded region R. Answer ______________________ Answer ______________________ Answer ______________________ (b) Which point in the shaded region will give the maximum value of y – 2x? Answer ______________________
15 List 4 questions that could be asked in a questionnaire to find out how a youth club is run. (Hint: Your questions should be closed and unambiguous)
Maths Revision Booklet N4
29
15 Calculate the value of x in each diagram. (Hint: The formulae are in the formula booklet)