Inequalities

Which inequality matches the graph?

• A
• B
• C
• D

-4x + 14 ≤ 54

• x ≥ - 10
• x ≤ -10
• x ≥ 10
• x ≤ 10

Do you flip the sign?
-3x + 2  ≤  22

• YES
• NO

You flip an inequality symbol when you...

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

6x - 4 ≥ 26

• x ≥ 3.67
• x ≥ 5
• x < 5
• x ≤ 5

3x - 2 < 13

• x > 3.67
• x > 5
• x < 5
• x < 3.67

Translate:

Twice a number is smaller than 42.

• 2x < 42

• 2x > 42

• 2x ≤ 42

• 2x ≥ 42

The product of x and 7 is not greater than 10

• 7x >10
• 7x ≤ 10
• 7 + x < 10
• ⁷ / _x <  10