Warm up: Inequalities

Solve the inequality:

–2x > –10

• x > 5

• x < 5

• x > –5

• x < –5

Tags

CCSS.6.EE.B.8

Solve the inequality:

3(x – 1) ≥ –9

• x ≥ –2

• x ≥ 2

• x ≤ –2

• x ≤ 2

Tags

CCSS.7.EE.B.4B

"At most" and "No more than" are both clue words for...

• <
• >
• ≤
• ≥

Tags

CCSS.6.EE.B.8

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

• <, >
• ≤, ≥ 

Tags

CCSS.6.EE.B.8

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

• ≤, ≥ 
• <, >

Tags

CCSS.6.EE.B.8

Write the phrase as an expression.
twice a number x plus 8 is greater than 12

• 2 + 8x < 12
• 2x + 8 > 12
• 2(x+8) ≠ 12
• 8(2+x) 

Tags

CCSS.7.EE.B.4B

Which inequality represents the situation six more than twice a number is greater than 50?

• 6 + x > 50
• 6 + 2x < 50
• 2x + 6 > 50
• 6x + 2 > 50

Tags

CCSS.7.EE.B.4B

Jo has 8 friends and makes 2 new friends per week. She doesn't want any more than 16 friends. Create an inequality to determine the number of weeks it will take Jo to reach her desired number of friends.

• 2x + 8 ≤ 16
• 16x +8 < 2
• 8x +2 ≤ 16
• 2x + 16 < 8

Your cell phone plan allows you 400 minutes to talk per month. So far this month, you have used 265 minutes and you have 7 days left on this month’s plan. Which inequality could you use to determine how many minutes at most you can use per day so that you don’t go over your monthly plan minutes?

• 7x + 265 < 400

• 7x + 265 ≤ 400

• 7x + 265 > 400

• 7x + 265 ≥ 400

Tags

CCSS.7.EE.B.4B