3. Equations/Inequations
Make the pronumeral the subject of the formula
e.g. (i ) x 3 6
4. Equations/Inequations
Make the pronumeral the subject of the formula
e.g. (i ) x 3 6
5. Equations/Inequations
Make the pronumeral the subject of the formula
e.g. (i ) x 3 6
x 63
x3
6. Equations/Inequations
Make the pronumeral the subject of the formula
e.g. (i ) x 3 6
x 63
x3
(ii ) 5 z 45
7. Equations/Inequations
Make the pronumeral the subject of the formula
e.g. (i ) x 3 6
x 63
x3
(ii ) 5 z 45
45
z
5
z 9
8. Equations/Inequations
Make the pronumeral the subject of the formula
e.g. (i ) x 3 6
x 63
x3
(ii ) 5 z 45
45
z
5
z 9
(iii ) 4 a 5 16
9. Equations/Inequations
Make the pronumeral the subject of the formula
e.g. (i ) x 3 6
x 63
x3
(ii ) 5 z 45
45
z
5
z 9
(iii ) 4 a 5 16
4a 20 16
4a 36
a9
10. Equations/Inequations
Make the pronumeral the subject of the formula
e.g. (i ) x 3 6 (iv) 3z 2 z 9
x 63
x3
(ii ) 5 z 45
45
z
5
z 9
(iii ) 4 a 5 16
4a 20 16
4a 36
a9
11. Equations/Inequations
Make the pronumeral the subject of the formula
e.g. (i ) x 3 6 (iv) 3z 2 z 9
x 63
x3
(ii ) 5 z 45
45
z
5
z 9
(iii ) 4 a 5 16
4a 20 16
4a 36
a9
12. Equations/Inequations
Make the pronumeral the subject of the formula
e.g. (i ) x 3 6 (iv) 3z 2 z 9
x 63 2 z 11
x3 11
z
(ii ) 5 z 45 2
45
z
5
z 9
(iii ) 4 a 5 16
4a 20 16
4a 36
a9
13. Equations/Inequations
Make the pronumeral the subject of the formula
e.g. (i ) x 3 6 (iv) 3z 2 z 9
x 63 2 z 11
x3 11
z
(ii ) 5 z 45 2
45
z 5 2
5 (v ) 3
z 9 7y y
(iii ) 4 a 5 16
4a 20 16
4a 36
a9
14. Equations/Inequations
Make the pronumeral the subject of the formula
e.g. (i ) x 3 6 (iv) 3z 2 z 9
x 63 2 z 11
x3 11
z
(ii ) 5 z 45 2
45
z 5 2
5 (v ) 3
z 9 7y y
5 14 21y
(iii ) 4 a 5 16
4a 20 16
4a 36
a9
15. Equations/Inequations
Make the pronumeral the subject of the formula
e.g. (i ) x 3 6 (iv) 3z 2 z 9
x 63 2 z 11
x3 11
z
(ii ) 5 z 45 2
45
z 5 2
5 (v ) 3
z 9 7y y
5 14 21y
(iii ) 4 a 5 16 21 y 19
4a 20 16 19
4a 36 y
21
a9
16. Equations/Inequations
Make the pronumeral the subject of the formula
e.g. (i ) x 3 6 (iv) 3z 2 z 9 x 3 2x 6
(vi )
x 63 5 3
2 z 11
x3 11
z
(ii ) 5 z 45 2
45
z 5 2
5 (v ) 3
z 9 7y y
5 14 21y
(iii ) 4 a 5 16 21 y 19
4a 20 16 19
4a 36 y
21
a9
17. Equations/Inequations
Make the pronumeral the subject of the formula
e.g. (i ) x 3 6 (iv) 3z 2 z 9 x 3 2x 6
(vi )
x 63 5 3
2 z 11
x3 11
z
(ii ) 5 z 45 2
45
z 5 2
5 (v ) 3
z 9 7y y
5 14 21y
(iii ) 4 a 5 16 21 y 19
4a 20 16 19
4a 36 y
21
a9
18. Equations/Inequations
Make the pronumeral the subject of the formula
e.g. (i ) x 3 6 (iv) 3z 2 z 9 x 3 2x 6
(vi )
x 63 5 3
2 z 11 3 x 9 10 x 30
x3 11
z
(ii ) 5 z 45 2
45
z 5 2
5 (v ) 3
z 9 7y y
5 14 21y
(iii ) 4 a 5 16 21 y 19
4a 20 16 19
4a 36 y
21
a9
19. Equations/Inequations
Make the pronumeral the subject of the formula
e.g. (i ) x 3 6 (iv) 3z 2 z 9 x 3 2x 6
(vi )
x 63 5 3
2 z 11 3 x 9 10 x 30
x3 11
z 7 x 39
(ii ) 5 z 45 2
39
45 x
z 5 2 7
5 (v ) 3
z 9 7y y
5 14 21y
(iii ) 4 a 5 16 21 y 19
4a 20 16 19
4a 36 y
21
a9
21. The inequality sign will only change when:
1) Multiply or divide by a negative number
“if you change the sign, you change the sign”
22. The inequality sign will only change when:
1) Multiply or divide by a negative number
“if you change the sign, you change the sign”
2) The reciprocal of both sides are taken
23. The inequality sign will only change when:
1) Multiply or divide by a negative number
“if you change the sign, you change the sign”
2) The reciprocal of both sides are taken
e.g. (i ) 6 x 36
24. The inequality sign will only change when:
1) Multiply or divide by a negative number
“if you change the sign, you change the sign”
2) The reciprocal of both sides are taken
e.g. (i ) 6 x 36
x6
25. The inequality sign will only change when:
1) Multiply or divide by a negative number
“if you change the sign, you change the sign”
2) The reciprocal of both sides are taken
e.g. (i ) 6 x 36
x6
5 6 7
26. The inequality sign will only change when:
1) Multiply or divide by a negative number
“if you change the sign, you change the sign”
2) The reciprocal of both sides are taken
e.g. (i ) 6 x 36 (ii ) 2 6 4 x 14
x6
5 6 7
27. The inequality sign will only change when:
1) Multiply or divide by a negative number
“if you change the sign, you change the sign”
2) The reciprocal of both sides are taken
e.g. (i ) 6 x 36 (ii ) 2 6 4 x 14
x6 4 4 x 8
5 6 7
28. The inequality sign will only change when:
1) Multiply or divide by a negative number
“if you change the sign, you change the sign”
2) The reciprocal of both sides are taken
e.g. (i ) 6 x 36 (ii ) 2 6 4 x 14
x6 4 4 x 8
1 x 2
5 6 7
29. The inequality sign will only change when:
1) Multiply or divide by a negative number
“if you change the sign, you change the sign”
2) The reciprocal of both sides are taken
e.g. (i ) 6 x 36 (ii ) 2 6 4 x 14
x6 4 4 x 8
1 x 2
5 6 7 2 x 1
30. The inequality sign will only change when:
1) Multiply or divide by a negative number
“if you change the sign, you change the sign”
2) The reciprocal of both sides are taken
e.g. (i ) 6 x 36 (ii ) 2 6 4 x 14
x6 4 4 x 8
1 x 2
5 6 7 2 x 1
-2 1
36. The “correct” way of writing inequalities
4 5 6 4 5 6
x5 4 x6
NOT 5 x
37. The “correct” way of writing inequalities
4 5 6 4 5 6
x5 4 x6
NOT 5 x NOT 6 x 4
38. The “correct” way of writing inequalities
4 5 6 4 5 6
x5 4 x6
NOT 5 x NOT 6 x 4
NOT x 4 or x 6
39. The “correct” way of writing inequalities
4 5 6 4 5 6
x5 4 x6
NOT 5 x NOT 6 x 4
NOT x 4 or x 6
4 5 6
40. The “correct” way of writing inequalities
4 5 6 4 5 6
x5 4 x6
NOT 5 x NOT 6 x 4
NOT x 4 or x 6
4 5 6
x 4 or x 6
41. The “correct” way of writing inequalities
4 5 6 4 5 6
x5 4 x6
NOT 5 x NOT 6 x 4
NOT x 4 or x 6
4 5 6
x 4 or x 6
NOT x 6 or x 4
42. The “correct” way of writing inequalities
4 5 6 4 5 6
x5 4 x6
NOT 5 x NOT 6 x 4
NOT x 4 or x 6
4 5 6
x 4 or x 6
NOT x 6 or x 4
NOT 4 x 6
43. The “correct” way of writing inequalities
4 5 6 4 5 6
x5 4 x6
NOT 5 x NOT 6 x 4
NOT x 4 or x 6
Exercise 1F; 3acdijm, 4afkp,
4 5 6 5behlp, 6acf, 7bcegh, 8aceg,
x 4 or x 6 9bdfhj, 10a, 11*
NOT x 6 or x 4
NOT 4 x 6