Week 3 DQ 1 - the inequality still valid it is said to flip...

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Due on Tuesday · Why does the inequality sign change when both sides are multiplied or divided by a negative number? Does this happen with equations? Why or why not? Write an inequality for your classmates to solve. In your inequality, use both the multiplication and addition properties of inequalities. Consider solving your classmates’ inequalities. Explain how you arrived at your answers. Also, help other students who may be having difficulty solving inequalities. Ask clarifying questions if you need additional assistance. 1. The inequality sign changes because when each side is divided or multiplied by a negative number, you are switching the signs of the numbers on each side. To make
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Unformatted text preview: the inequality still valid, it is said to flip the sign. If it is: If it is >, it will become < If it is <, it will become > If it is <=, it will become => If it is =>, it will become <= If you do not flip the sign, then the answers are a whole different range which are not valid and will not work in the inequality anymore. In an equation, this does not apply since each side is equally balanced so doing something on one side will be done on the other side, so nothing will be changed. Any ways, there is no way to actually "flip" an equal sign. Inequality to solve:-2(2x+3x-2) > -7(x-x+7x-10) + 2x/x HINT: The answer is a nasty fraction...
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This note was uploaded on 04/20/2011 for the course MATH 116 taught by Professor Mcmillian during the Spring '09 term at University of Phoenix.

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