inequality review

What does inequality mean?

• equal

• not equal

TRUE or FALSE: Inequalities contain equal signs.

• TRUE

• FASLE

When graphing inequalities:

Use an open circle for ​​ (a)   .

Use a closed circle for ​​​​ (b)   .

• > or <
• ≥ or ≤

Match each statement with the correct graph.

• y > 6

• 
• y ≥ 6

• 
• y < 6

• 
• y ≤ 6

• 

When solving inequalities, if you multiply or​ ​ (a)   both sides by a ​ (b)   number, you must ​ (c)   the ​ (d)   symbol.

• divide
• negative
• flip
• inequality
• add
• positive
• equal

When graphing b< 6 would you use an open or closed circle?

• Open
• closed

You flip an inequality symbol when you...

• subtract
• multiply and divide only
• multiple by a negative number
• multiple or divide by a negative number

Do your flip the inequality symbol

-3x − 4 < 5

• Yes, because the 4 is negative

• No because the 5 is positive

• Yes because the coefficient -3 is negative

• No because you don't ever flip the symbol

When solving the inequality

2x + 6 > 4

do you reverse the inequality sign?

• Yes, because the 6 is positive

• No, because the 4 is positive

• Yes, because the coefficient 2 is positive

• No, because you only reverse the sign when multiplying or dividing by a negative number

When solving the inequality

-3x - 9 < 0

do you reverse the inequality sign?

• Yes, because the 9 is negative

• No, because the 0 is neutral

• Yes, because the coefficient -3 is negative

• No, because you only reverse the sign when multiplying or dividing by a negative number