Inequalities Review One Step

Which graph matches the inequality r ≥ -6?

• A

• B

• C

• D

When solving an inequality, use the inverse/opposite operation, just like when solving equations. Except for one small exception...

• when adding or subtracting both sides by a negative number you must remember to reverse the inequality symbol.

• when multiplying or dividing both sides by a negative number you must remember to reverse the inequality symbol.

• when applying any operation to both sides using a negative number you must remember to reverse the inequality symbol.

• exception? no exceptions inequalities and equations are solved the same exact way every single time.

When graphing an inequality, you use an open dot when you use which symbol?

• <, >

• ≤, ≥ 

When you graph an inequality, you used a closed dot when you use which symbols?

• ≤, ≥ 

• <, >

Match the graph with its inequality.

• a > 11

• a < 11

•  a  ≥ 11

•  a ≤ 11

Pick the correct inequality.

• A

• B

• C

• D

Is 7 a solution to the inequality below?
d + 2 < 6

• Yes

• No

Is 9 a solution to the inequality below?
4k ≥ 36

• Yes

• No

x + 5 > 7

• x > -2

• x > 2

• x > 12

• x > -12

What inequality does the number line represent?

• x ≥ 3

• x > 3

• x < -3

• x ≤ 3