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Why does inequality sign change when both sides are multiplied or divided by a negative number Does this happen with equations why or why not?
Billbacorn
I cannot tell you why it changes however it does happen with an equation as most inequalities start off in an equation.
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∙ 14y ago
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When do you change the direction of an inequality symbol?
When a side is multiplied or divided by a negative number.
Negative divided by a poitive?
The answer of a negative number multiplied by (or divided by) a positive number will be a negative number.
Why does negative two plus positive two equal zero?
Because if a negative is multiplied by another negative it will always be positive. But, if a positive is multiplied or divided by a negative it will always be negative. If the two signs are the same and or being multiplied or divided they will be positive. If the two signs are different and or being multiplied or divided will be negative. True, but the question is not about multiplication, but addition. i like to think of it like this on a number line there are positives and negatives -3 -2 -1 0 1 2 3 if you added 2 to zero you move up to the number positive 2 then move down two number, which represents subtracting two or negative two. you should end up on zero
Does a negative and a negative equal a positive?
If you multiply a positive number by a negative it always equals a negative number.Depends what you mean by "and".If they're added: neverIf they're subtracted: sometimesIf they're multiplied or divided: always
Does the inequality sign change when both sides are multiplied or divided in an equation?
no because if the same is added to both sides they stay inequal example: 4≠6 (*5) 20≠30
When should an inequality sign be reversed?
When one side of the inequality is divided or multiplied by a negative number.
When do you change the direction of an inequality symbol?
When a side is multiplied or divided by a negative number.
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 notWrite an inequality for your classmates to solve I?
-x > a iff** x < -a This is easy to see intuitively by coloring a number line. ** "if and only if"
When solving an inequality when is it necessary to change the direction of the inequality symbol?
When the two sides of the inequality are multiplied or divided by a negative number or term or expression.
What happens when both sides of a less than inequality are multiplied or divided by a negative number?
The inequality sign becomes greater than (>).
When you multiply both sides of any inequality by a negative number you need to the inequality symbol?
When an Inequality expression is multiplied (or divided) by a negative number then the Inequality sign is reversed. Example : -9x < 18 : -x < 2 : x > -2........as both sides have been multiplied by -1.
What happens when you multiply or divide an inequalitie by a negative number?
When an inequality is multiplied or divided by a negative number the inequality sign is reversed.Example : -x < 7 ......after multiplying by (say) -2 this becomes 2x > -14
What sign is the answer to a minus divided by a minus?
a negative divided or multiplied by a negative is a positive a negative and a positive multiplied or divided by each other is a negative a negative divided or multiplied by a negative is a positive a negative and a positive multiplied or divided by each other is a negative
What do you do with your inequality if you divide by both sides by a negative number?
If two sides of an inequality are multiplied (or divided) by a negative number, you have to invert the sign. For example, a "less-than" sign becomes a "greater-than" sign.
How do you use inqualities?
If an inequality is multiplied or divided by a negative number then the inequality sign is switched. For example, -2x > 4 then -2x/-2 > 4/-2 then x < -2.
Why does the inequality sign change when both sides are multilpied or divided by a negative number.Does this happen to equations?
It changes because the number may be lesser than the original equation. The greater the negative number the more likely the inequality sign will change.
Dose a negative multiplied a positive a negative?
When two numbers with different signs are multiplied or divided, the answer is negative.
