3-1 and 3-2 Knowledge Check Review

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• This is a true statement.

• This is a false statement.

• This is a true statement.

• This is a false statement.

A chef has 7 pounds of potatoes.  She needs more than 14 pounds for dinner.  What inequality describes the amount of potatoes the chef needs to buy?

• x - 7 > 14
• x + 7 > 14
• x - 7 < 14
• x + 7 < 14

Does the sign need to flip when solving?
8y < (-40)

• YES
• NO

Level 1

When do we switch the inequality symbol?

• when multiplying or dividing by a NEGATIVE

• when adding and subtracting a NEGATIVE

• we never switch the inequality

• When there is a negative in the problem

x + 5 > 7

• x > -2
• x > 2
• x > 12
• x > -12

y - 13 ≤ -15

• y ≤ 2
• y ≤ -2
• y ≤ 28
• y ≤ -28