Question 1: Solve the following inequation and graph the solution on a number line , where . [2011]

Answer:

or or

or or

Therefore

Question 2: Given that , solve the inequation and graph it on a number line: . [2004]

Answer:

Therefore

Question 3: Given , . Find the range of the set and represent it on a number line. [2005]

Answer:

or

or

Question 4: Solve the given inequation and graph it on a number line: . [2008]

Answer:

or

or or

Hence

Question 5: Solve the given inequation and graph it on a number line: . [2010]

Answer:

or

or

or

Therefore

Question 6: Solve the given inequation and graph it on a number line: . [2012]

Answer:

or or or

or or or

Therefore

Question 7: Solve the given inequation and graph it on a number line: . [2013]

Answer:

or or

or or or

Therefore

Question 8: Find the value of which satisfies the inequation: . [2014]

Answer:

or or or

or or

Therefore

Question 9: Solve the inequation: given that [1987]

Answer:

Question 10: Solve the inequation: and . [1999]

Answer: