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©2009 – Not to be sold/Free to use

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Presentation on theme: "©2009 – Not to be sold/Free to use"— Presentation transcript:

1 ©2009 – Not to be sold/Free to use
Stage 5 Year 9 Inequations One Steppers Press Ctrl-A ©2009 – Not to be sold/Free to use

2 How it is done! Solve the following inequation m + 3 > 5 m > 2
-3 -3 m > 2 The inequation can be graphed on number line. Draw arrow in the direction of the inequality sign. -5 -4 -3 -2 -1 1 2 3 4 5 Use an open circle as the inequation has no equal sign.

3 How it is done! Solve the following inequation b - 2 > -5 b > -3
+2 +2 b > -3 Graph on number line. -5 -4 -3 -2 -1 1 2 3 4 5 Draw arrow in the direction of the inequality sign. Use an open circle

4 How it is done! Solve the following inequation 4w ≤ 12 w ≤ 3
÷4 ÷4 w ≤ 3 Graph on number line. -5 -4 -3 -2 -1 1 2 3 4 5 Draw arrow in the direction of the inequality sign. Use a CLOSED circle Because of equals sign.

5 How it is done! Solve the following inequation h ÷ 2 ≥ -1 h ≥ -2
x2 x2 h ≥ -2 Graph on number line. -5 -4 -3 -2 -1 1 2 3 4 5 Use an CLOSED circle Because of equals sign. Draw arrow in the direction of the inequality sign.

6 Solve and graph the following inequations.
Exercises Solve and graph the following inequations. 1. k ÷ 4 ≥ 1 2. h + 2 < -1 3. 3p > 6 x4 x4 -2 -2 ÷3 ÷3 k ≥ 4 h < -3 p > 2 4 -3 2 4. m - 2 ≤ -1 5. 7z > 49 6. w ÷ 2 ≥ 9 +2 +2 ÷7 ÷7 x2 x2 m ≤ 1 z > 7 w ≥ 18 1 7 18

7 Solve and graph the following inequations.
Exercises Solve and graph the following inequations. 7. b ÷ 6 < 4 8. n + 7 ≥ 9 9. 4p > -24 x6 x6 -7 -7 ÷4 ÷4 b < 24 n ≥ 2 p > -6 24 2 -6 10. c - 6 ≥ -1 11. 5z ≤ 490 12. w ÷ 5 > 9 +6 +6 ÷5 ÷5 x5 x5 c ≥ 5 z ≤ 98 w > 45 5 98 45


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