SOLUTION: Why does the inequality sign change when both sides are multiplied or divided by a negative number? Does this happen with equations? Explain why or why not?
Write an ineq
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-> SOLUTION: Why does the inequality sign change when both sides are multiplied or divided by a negative number? Does this happen with equations? Explain why or why not?
Write an ineq
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Question 253797: Why does the inequality sign change when both sides are multiplied or divided by a negative number? Does this happen with equations? Explain why or why not?
Write an inequality for your classmates to solve. In your inequality, use both the multiplication and addition properties of inequalities.
You can put this solution on YOUR website! Let's take an example.
x> y
divide by -6
-x/6<-y/6
Now lets see if it is true by substituting numbers
42> 36
divide by -6
42/-6 and 36/-6
-7 and -6
but -6> -7
or
-7<-6
Why? Because the negative number line digits are the reverse order of the positive number line digits.
