Inequalities

Part a) solve the inequality 2x+ 3 >_1 Part b) write down the inequality shown by the following diagram -4 going down to 2 Part c) write down all the integers that satisfy both inequalitiea shown in part a part b

Answers
Well if 2x+3 is less than or equal to one, then take the three over to the other side. This means that 2x is less than or equal to -2. Divide through by two so that x is less than or equal to -1. The rest is a little trickier to visualise without a diagram I'm afraid. However if you draw both on a graph and mark on where the two lines meet you'll have your answer.
mjhansford
10 July 2012
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